actinium | (noun) a radioactive element of the actinide series; found in uranium ores | Synonyms: Ac, atomic number 89 |
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actinoid | (adjective) having a radial form | - |
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(noun) any of a series of radioactive elements with atomic numbers 89 through 103 | Synonyms: actinide, actinon |
actinolite | (noun) a green mineral of the amphibole group; calcium magnesium iron silicate | - |
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actinometer | (noun) an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect) | - |
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actinometric | (adjective) of or related to actinometry | Synonyms: actinometrical |
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actinometrical | (adjective) of or related to actinometry | Synonyms: actinometric |
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actinometry | (noun) measuring the intensity of electromagnetic radiation (especially of the sun's rays) | - |
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actinomorphic | (adjective) capable of division into symmetrical halves by any longitudinal plane passing through the axis | Synonyms: actinomorphous |
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actinomorphous | (adjective) capable of division into symmetrical halves by any longitudinal plane passing through the axis | Synonyms: actinomorphic |
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actinomyces | (noun) soil-inhabiting saprophytes and disease-producing plant and animal parasites | - |
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actinomycetal | (adjective) of or belonging to the actinomycetes | Synonyms: actinomycetous |
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actinomycete | (noun) any bacteria (some of which are pathogenic for humans and animals) belonging to the order Actinomycetales | - |
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actinomycetous | (adjective) of or belonging to the actinomycetes | Synonyms: actinomycetal |
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actinomycin | (noun) any of various red antibiotics isolated from soil bacteria | - |
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actinomycosis | (noun) disease of cattle that can be transmitted to humans; results from infection with actinomycetes; characterized by hard swellings that exude pus through long sinuses | - |
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actinomycotic | (adjective) of or related to actinomycosis infection | - |
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actinomyxidian | (noun) of or relating to parasites of worms | - |
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actinon | (noun) any of a series of radioactive elements with atomic numbers 89 through 103 | Synonyms: actinide, actinoid |
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actinopod | (noun) protozoa having stiff rodlike radiating pseudopods | - |
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actinotherapy | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: irradiation, radiation, radiation therapy, radiotherapy |
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actinozoan | (noun) sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed | Synonyms: anthozoan |
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action | (noun) the most important or interesting work or activity in a specific area or field | - |
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(noun) a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong | Synonyms: action at law, legal action |
(noun) something done (usually as opposed to something said) | - |
(noun) a military engagement | Synonyms: military action |
(noun) an act by a government body or supranational organization | - |
(noun) the operating part that transmits power to a mechanism | Synonyms: action mechanism |
(noun) In firearms terminology, the mechanism that handles the ammunition (loads, locks, fires, and extracts the cartridges). | - |
(noun) the trait of being active and energetic and forceful | - |
(noun) the series of events that form a plot | - |
(noun) a process existing in or produced by nature (rather than by the intent of human beings) | Synonyms: activity, natural action, natural process |
(noun) the state of being active | Synonyms: activeness, activity |
(verb) put in effect | Synonyms: accomplish, carry out, carry through, execute, fulfil, fulfill |
(verb) institute legal proceedings against; file a suit against | Synonyms: litigate, process, sue |
actionable | (adjective) affording grounds for legal action | - |
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activate | (verb) make active or more active | - |
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(verb) make (substances) radioactive | - |
(verb) aerate (sewage) so as to favor the growth of organisms that decompose organic matter | Synonyms: aerate |
(verb) make more adsorptive | - |
(verb) put in motion or move to act | Synonyms: actuate, set off, spark, spark off, touch off, trigger, trigger off, trip |
activated | (adjective) rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive | - |
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(adjective) (military) set up and placed on active assignment | - |
(adjective) (of e.g. a molecule) made reactive or more reactive | Synonyms: excited |
(adjective) (of sewage) treated with aeration and bacteria to aid decomposition | - |
activating | (adjective) causing motion or action or change | Synonyms: actuating |
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(noun) the activity of causing to have energy and be active | Synonyms: activation, energizing |
activation | (noun) the activity of causing to have energy and be active | Synonyms: activating, energizing |
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(noun) making active and effective (as a bomb) | - |
(noun) stimulation of activity in an organism or chemical | - |
activator | (noun) (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription | - |
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active | (adjective) (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being | Synonyms: dynamic |
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(adjective) characterized by energetic activity | - |
(adjective) tending to become more severe or wider in scope | - |
(adjective) disposed to take action or effectuate change | - |
(adjective) (of e.g. volcanoes) erupting or liable to erupt | - |
(adjective) (of e.g. volcanoes) capable of erupting | - |
(adjective) full of activity or engaged in continuous activity | - |
(adjective) exerting influence or producing a change or effect | - |
(adjective) engaged in full-time work | - |
(adjective) expressing that the subject of the sentence has the semantic function of actor: | - |
(adjective) (of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions | - |
(adjective) in operation | Synonyms: alive |
(adjective) taking part in an activity | Synonyms: participating |
(adjective) engaged in or ready for military or naval operations | Synonyms: combat-ready, fighting |
(noun) a person who is a participating member of an organization | - |
(noun) the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb | Synonyms: active voice |
(noun) chemical agent capable of activity | Synonyms: active agent |
actively | (adverb) in an active manner | - |
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activeness | (noun) the trait of being active; moving or acting rapidly and energetically | Synonyms: activity |
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(noun) the state of being active | Synonyms: action, activity |
activewear | (noun) attire worn for sport or for casual wear | Synonyms: athletic wear, sportswear |
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activism | (noun) a policy of taking direct action to achieve a political or social goal | - |
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activist | (adjective) advocating or engaged in activism | Synonyms: activistic |
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(noun) a militant reformer | Synonyms: militant |
activistic | (adjective) advocating or engaged in activism | Synonyms: activist |
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activity | (noun) any specific behavior | - |
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(noun) the trait of being active; moving or acting rapidly and energetically | Synonyms: activeness |
(noun) an organic process that takes place in the body | Synonyms: bodily function, bodily process, body process |
(noun) a process existing in or produced by nature (rather than by the intent of human beings) | Synonyms: action, natural action, natural process |
(noun) the state of being active | Synonyms: action, activeness |
(noun) (chemistry) the capacity of a substance to take part in a chemical reaction | - |
actomyosin | (noun) a protein complex in muscle fibers; composed of myosin and actin; shortens when stimulated and causes muscle contractions | - |
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actor | (noun) a theatrical performer | Synonyms: histrion, player, role player, thespian |
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(noun) a person who acts and gets things done | Synonyms: doer, worker |
actress | (noun) a female actor | - |
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actual | (adjective) presently existing in fact and not merely potential or possible | Synonyms: existent |
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(adjective) being or existing at the present moment | - |
(adjective) taking place in reality; not pretended or imitated | - |
(adjective) being or reflecting the essential or genuine character of something | Synonyms: genuine, literal, real |
(adjective) existing in act or fact | Synonyms: factual |
actualisation | (noun) making real or giving the appearance of reality | Synonyms: actualization, realisation, realization |
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actualise | (verb) represent or describe realistically | Synonyms: actualize |
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(verb) make real or concrete; give reality or substance to | Synonyms: actualize, realise, realize, substantiate |
actuality | (noun) the state of actually existing objectively | - |
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actualization | (noun) making real or giving the appearance of reality | Synonyms: actualisation, realisation, realization |
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actualize | (verb) represent or describe realistically | Synonyms: actualise |
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(verb) make real or concrete; give reality or substance to | Synonyms: actualise, realise, realize, substantiate |
actually | (adverb) used to imply that one would expect the fact to be the opposite of that stated; surprisingly | Synonyms: in reality |
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(adverb) in actual fact | Synonyms: really |
(adverb) as a sentence modifier to add slight emphasis; as a modifier to add slight emphasis | - |
(adverb) at present | - |
actuarial | (adjective) of or relating to the work of an actuary | - |
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actuary | (noun) someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums) | Synonyms: statistician |
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actuate | (verb) put in motion or move to act | Synonyms: activate, set off, spark, spark off, touch off, trigger, trigger off, trip |
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(verb) give an incentive for action | Synonyms: incite, motivate, move, prompt, propel |
actuated | (adjective) moved to action | - |
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actuating | (adjective) causing motion or action or change | Synonyms: activating |
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actuation | (noun) the act of propelling | Synonyms: propulsion |
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actuator | (noun) a mechanism that puts something into automatic action | - |
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acuate | (adjective) ending in a sharp point | Synonyms: acute, needlelike, sharp |
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acuity | (noun) a quick and penetrating intelligence | Synonyms: acuteness, keenness, sharpness |
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(noun) sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart) | Synonyms: sharp-sightedness, visual acuity |
aculea | (noun) small spiny outgrowth on the wings of certain insects | - |
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aculeate | (adjective) having or resembling a stinger or barb | Synonyms: aculeated |
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aculeated | (adjective) having or resembling a stinger or barb | Synonyms: aculeate |
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aculeus | (noun) a sharp-pointed process especially a sting of a hymenopterous insect | - |
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(noun) a stiff sharp-pointed plant process | - |
acumen | (noun) shrewdness shown by keen insight | Synonyms: insightfulness |
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(noun) a tapering point | - |
acuminate | (adjective) (of a leaf shape) narrowing to a slender point | - |
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(verb) make sharp or acute; taper; make (something) come to a point | - |
acupressure | (noun) treatment of symptoms by applying pressure with the fingers to specific pressure points on the body | Synonyms: G-Jo, shiatsu |
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acupuncture | (noun) treatment of pain or disease by inserting the tips of needles at specific points on the skin | Synonyms: stylostixis |
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acute | (adjective) having or experiencing a rapid onset and short but severe course | - |
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(adjective) of an angle; less than 90 degrees | - |
(adjective) of critical importance and consequence | - |
(adjective) having or demonstrating ability to recognize or draw fine distinctions | Synonyms: discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp |
(adjective) ending in a sharp point | Synonyms: acuate, needlelike, sharp |
(adjective) extremely sharp or severe | Synonyms: intense |
(noun) a mark placed above a vowel to indicate pronunciation | Synonyms: acute accent, ague |
acutely | (adverb) having a rapid onset | - |
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(adverb) in a keen or penetrating way | Synonyms: keenly |
(adverb) changing suddenly in direction and degree | Synonyms: sharp, sharply |
(adverb) in a shrewd manner | Synonyms: astutely, sagaciously, sapiently, shrewdly |
acuteness | (noun) the quality of having a sharp edge or point | - |
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(noun) a quick and penetrating intelligence | Synonyms: acuity, keenness, sharpness |
(noun) a sensitivity that is keen and highly developed | - |
acyclic | (adjective) not cyclic; especially having parts arranged in spirals rather than whorls | - |
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(adjective) having an open chain structure | Synonyms: open-chain |
acyclovir | (noun) an oral antiviral drug (trade name Zovirax) used to treat genital herpes; does not cure the disease but relieves the symptoms | Synonyms: Zovirax |
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acyl | (noun) any group or radical of the form RCO- where R is an organic group | Synonyms: acyl group |
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acylation | (noun) the process of introducing an acyl group into a compound | - |
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acylglycerol | (noun) an ester of glycerol and fatty acids that occurs naturally as fats and fatty oils | Synonyms: glyceride |
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ad | (noun) a public promotion of some product or service | Synonyms: advert, advertisement, advertising, advertizement, advertizing |
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adactylia | (noun) congenital absence of fingers and/or toes | Synonyms: adactylism, adactyly |
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adactylism | (noun) congenital absence of fingers and/or toes | Synonyms: adactylia, adactyly |
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adactylous | (adjective) without fingers and/or toes | - |
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adactyly | (noun) congenital absence of fingers and/or toes | Synonyms: adactylia, adactylism |
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adage | (noun) a condensed but memorable saying embodying some important fact of experience that is taken as true by many people | Synonyms: byword, proverb, saw |
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adagio | (adjective) (of tempo) leisurely | - |
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(noun) a slow section of a pas de deux requiring great skill and strength by the dancers | - |
(noun) (music) a composition played in adagio tempo (slowly and gracefully) | - |
(adverb) slowly | - |
adamance | (noun) resoluteness by virtue of being unyielding and inflexible | Synonyms: obduracy, unyieldingness |
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adamant | (adjective) impervious to pleas, persuasion, requests, reason | Synonyms: adamantine, inexorable, intransigent |
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(noun) very hard native crystalline carbon valued as a gem | Synonyms: diamond |
adamantine | (adjective) consisting of or having the hardness of adamant | - |
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(adjective) having the hardness of a diamond | - |
(adjective) impervious to pleas, persuasion, requests, reason | Synonyms: adamant, inexorable, intransigent |
adamantly | (adverb) inflexibly; unshakably | - |
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adapt | (verb) make fit for, or change to suit a new purpose | Synonyms: accommodate |
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(verb) adapt or conform oneself to new or different conditions | Synonyms: adjust, conform |
adaptability | (noun) the ability to change (or be changed) to fit changed circumstances | - |
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adaptable | (adjective) capable of adapting (of becoming or being made suitable) to a particular situation or use | - |
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adaptation | (noun) (physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light) | - |
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(noun) a written work (as a novel) that has been recast in a new form | Synonyms: version |
(noun) the process of adapting to something (such as environmental conditions) | Synonyms: adaption, adjustment |
adaptational | (adjective) of or relating to adaptation | - |
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adaptative | (adjective) having a capacity for adaptation | Synonyms: adaptive |
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adapted | (adjective) changed in order to improve or made more fit for a particular purpose | Synonyms: altered |
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adapter | (noun) device that enables something to be used in a way different from that for which it was intended or makes different pieces of apparatus compatible | Synonyms: adaptor |
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(noun) a musician who adapts a composition for particular voices or instruments or for another style of performance | Synonyms: arranger, transcriber |
adaption | (noun) the process of adapting to something (such as environmental conditions) | Synonyms: adaptation, adjustment |
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adaptive | (adjective) having a capacity for adaptation | Synonyms: adaptative |
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adaptor | (noun) device that enables something to be used in a way different from that for which it was intended or makes different pieces of apparatus compatible | Synonyms: adapter |
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adaxial | (adjective) nearest to or facing toward the axis of an organ or organism | Synonyms: ventral |
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adaxially | (adverb) in an adaxial manner | - |
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add | (verb) make an addition (to); join or combine or unite with others; increase the quality, quantity, size or scope of | - |
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(verb) make an addition by combining numbers | Synonyms: add together |
(verb) determine the sum of | Synonyms: add together, add up, sum, sum up, summate, tally, tot, tot up, total, tote up |
(verb) state or say further | Synonyms: append, supply |
(verb) bestow a quality on | Synonyms: bestow, bring, contribute, impart, lend |
(verb) constitute an addition | - |
addable | (adjective) capable of being added or added to | Synonyms: addible |
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addax | (noun) large antelope with lightly spiraled horns of desert regions of northern Africa | Synonyms: Addax nasomaculatus |
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addend | (noun) a number that is added to another number (the augend) | - |
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addendum | (noun) textual matter that is added onto a publication; usually at the end | Synonyms: postscript, supplement |
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