| incontrovertibly | (adverb) in an obvious and provable manner | Synonyms: demonstrably, provably |
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| instroke | (noun) the stroke of an engine piston moving away from the crankshaft | - |
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| intro | (noun) formally making a person known to another or to the public | Synonyms: introduction, presentation |
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| (noun) a brief introductory passage to a piece of popular music | - |
| introduce | (verb) be a precursor of | Synonyms: inaugurate, usher in |
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| (verb) place, fit, or thrust (something) into another thing | Synonyms: enclose, inclose, insert, put in, stick in |
| (verb) put before (a body) | - |
| (verb) cause to come to know personally | Synonyms: acquaint, present |
| (verb) furnish with a preface or introduction | Synonyms: precede, preface, premise |
| (verb) bring before the public for the first time, as of an actor, song, etc. | Synonyms: bring out |
| (verb) put or introduce into something | Synonyms: enter, infix, insert |
| (verb) bring something new to an environment | Synonyms: innovate |
| (verb) bring in or establish in a new place or environment | - |
| (verb) bring in a new person or object into a familiar environment | Synonyms: bring in |
| introduction | (noun) the act of putting one thing into another | Synonyms: insertion, intromission |
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| (noun) the act of beginning something new | Synonyms: debut, entry, first appearance, launching, unveiling |
| (noun) the act of starting something for the first time; introducing something new | Synonyms: creation, foundation, founding, initiation, innovation, instauration, institution, origination |
| (noun) the first section of a communication | - |
| (noun) formally making a person known to another or to the public | Synonyms: intro, presentation |
| (noun) a basic or elementary instructional text | - |
| (noun) a new proposal | - |
| introductoriness | (noun) The quality of being introducing; of giving a preview or idea of. | - |
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| introductory | (adjective) serving as a base or starting point | Synonyms: basic |
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| (adjective) serving to open or begin | - |
| (adjective) serving as an introduction or preface | Synonyms: prefatorial, prefatory |
| introit | (noun) a composition of vocal music that is appropriate for opening church services | - |
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| introitus | (noun) entrance or opening to a hollow organ or tube (especially the vaginal opening) | - |
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| introject | (noun) (psychoanalysis) parental figures (and their values) that you introjected as a child; the voice of conscience is usually a parent's voice internalized | - |
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| (verb) incorporate (attitudes or ideas) into one's personality unconsciously | - |
| introjected | (adjective) incorporated unconsciously into your own psyche | - |
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| introjection | (noun) (psychoanalysis) the internalization of the parent figures and their values; leads to the formation of the superego | - |
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| (noun) (psychology) unconscious internalization of aspects of the world (especially aspects of persons) within the self in such a way that the internalized representation takes over the psychological functions of the external objects | - |
| intromission | (noun) the act of putting one thing into another | Synonyms: insertion, introduction |
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| intromit | (verb) allow to enter; grant entry to | Synonyms: admit, allow in, let in |
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| intron | (noun) sequence of a eukaryotic gene's DNA that is not translated into a protein | Synonyms: noncoding DNA |
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| introspect | (verb) reflect on one's own thoughts and feelings | - |
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| introspection | (noun) the contemplation of your own thoughts and desires and conduct | Synonyms: self-contemplation, self-examination |
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| introspectionism | (noun) a doctrine that psychology must be based essentially on data derived from introspection. | - |
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| introspective | (adjective) given to examining own sensory and perceptual experiences | Synonyms: introverted, self-examining |
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| introspectiveness | (noun) thoughtfulness about your own situation and feelings | - |
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| introuvable | (adjective) impossible to find | - |
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| introversion | (noun) (psychology) an introverted disposition; concern with one's own thoughts and feelings | - |
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| (noun) the folding in of an outer layer so as to form a pocket in the surface | Synonyms: infolding, intussusception, invagination |
| (noun) the condition of being folded inward or sheathed | Synonyms: invagination |
| introversive | (adjective) directed inward; marked by interest in yourself or concerned with inner feelings | Synonyms: introvertive |
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| introvert | (noun) (psychology) a person who tends to shrink from social contacts and to become preoccupied with their own thoughts | - |
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| (verb) turn inside | - |
| (verb) fold inwards | Synonyms: invaginate |
| introverted | (adjective) given to examining own sensory and perceptual experiences | Synonyms: introspective, self-examining |
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| introvertish | (adjective) somewhat introverted | Synonyms: shut-in |
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| introvertive | (adjective) directed inward; marked by interest in yourself or concerned with inner feelings | Synonyms: introversive |
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| isentropic | (adjective) with unchanging entropy; at constant entropy | - |
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| isometropia | (noun) equality of refractive power in the two eyes | - |
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| isotropic | (adjective) invariant with respect to direction | Synonyms: isotropous |
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| isotropically | (adverb) in an isotropic manner | - |
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| isotropous | (adjective) invariant with respect to direction | Synonyms: isotropic |
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| isotropy | (noun) (physics) the property of being isotropic; having the same value when measured in different directions | Synonyms: symmetry |
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| kenotron | (noun) a type of vacuum tube formerly used as a high-voltage rectifier. | - |
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| ketotetrose | (noun) A monosaccharide that has both a ketone and four carbons. | - |
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| keystroke | (noun) the stroke of a key; one depression of a key on a keyboard | Synonyms: key stroke |
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| klystron | (noun) an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation | - |
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| lipochondrodystrophy | (noun) hereditary disease (autosomal recessive) consisting of an error is mucopolysaccharide metabolism; characterized by severe abnormalities in development of skeletal cartilage and bone and mental retardation | Synonyms: dysostosis multiplex, gargoylism, Hurler's disease, Hurler's syndrome |
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| lipotropic | (adjective) having an affinity for lipids | Synonyms: lipophilic |
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| lustrous | (adjective) brilliant | - |
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| (adjective) made smooth and bright by or as if by rubbing; reflecting a sheen or glow | Synonyms: bright, burnished, shining, shiny |
| (adjective) reflecting light | Synonyms: glistening, glossy, sheeny, shining, shiny |
| luteotropin | (noun) gonadotropic hormone secreted by the anterior pituitary; in females it stimulates growth of the mammary glands and lactation after parturition | Synonyms: lactogenic hormone, prolactin |
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| maelstrom | (noun) a powerful circular current of water (usually the result of conflicting tides) | Synonyms: vortex, whirlpool |
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| maestro | (noun) an artist of consummate skill | Synonyms: master |
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| magnetron | (noun) a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators | - |
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| masterstroke | (noun) an achievement demonstrating great skill or mastery | - |
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| matron | (noun) a married woman (usually middle-aged with children) who is staid and dignified | - |
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| (noun) a woman in charge of nursing in a medical institution | - |
| (noun) a wardress in a prison | - |
| matronly | (adjective) befitting or characteristic of a fully mature woman | - |
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| matronymic | (noun) a name derived from the name of your mother or a maternal ancestor | Synonyms: metronymic |
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| megestrol | (noun) a synthetic progestational compound used to treat endometrial carcinoma | Synonyms: megestrol acetate |
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| mesotron | (noun) an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0 | Synonyms: meson |
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| meteortropism | (noun) an effect of climate on biological processes (as the effect on joint pains etc.) | - |
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| metro | (noun) an electric railway operating below the surface of the ground (usually in a city) | Synonyms: subway, subway system, tube, underground |
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| metrological | (adjective) of or relating to metrology | - |
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| metrology | (noun) the scientific study of measurement | - |
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| metronidazole | (noun) antiprotozoal medication (trade name Flagyl) used to treat trichomoniasis and giardiasis | Synonyms: Flagyl |
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| metronome | (noun) clicking pendulum indicates the exact tempo of a piece of music | - |
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| metronymic | (noun) a name derived from the name of your mother or a maternal ancestor | Synonyms: matronymic |
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| metropolis | (noun) people living in a large densely populated municipality | Synonyms: city |
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| (noun) a large and densely populated urban area; may include several independent administrative districts | Synonyms: city, urban center |
| metropolitan | (adjective) relating to or characteristic of a metropolis | - |
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| (noun) a person who lives in a metropolis | - |
| (noun) in the Eastern Orthodox Church this title is given to a position between bishop and patriarch; equivalent to archbishop in western Christianity | - |
| metroptosis | (noun) prolapse of the uterus | Synonyms: descensus uteri |
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| metrorrhagia | (noun) bleeding from the uterus that is not due to menstruation; usually indicative of disease (as cervical cancer) | - |
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| metrosexual | (adjective) a heterosexual man that is particularly interested in his appearance, being well-groomed and fashion | - |
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| microelectronic | (adjective) of or relating to or consisting of miniature electronic components | - |
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| microelectronics | (noun) the branch of electronics that deals with miniature components | - |
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| minestrone | (noun) soup made with a variety of vegetables | Synonyms: petite marmite, vegetable soup |
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| monestrous | (adjective) having one estrous cycle per year | Synonyms: monoestrous |
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| monoestrous | (adjective) having one estrous cycle per year | Synonyms: monestrous |
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| monstrosity | (noun) something hideous or frightful | - |
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| (noun) a person or animal that is markedly unusual or deformed | Synonyms: freak, lusus naturae, monster |
| monstrous | (adjective) shockingly brutal or cruel | Synonyms: atrocious, flagitious, grievous |
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| (adjective) abnormally large | - |
| (adjective) distorted and unnatural in shape or size; abnormal and hideous | Synonyms: grotesque |
| monstrously | (adverb) in a grotesque manner | Synonyms: grotesquely |
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| (adverb) in a terribly evil manner | Synonyms: heinously |
| (adverb) in a hideous manner | Synonyms: hideously, horridly |
| natrolite | (noun) a group of minerals of the zeolite family consisting of a hydrous silicate of sodium and aluminum | - |
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| negatron | (noun) an elementary particle with negative charge | Synonyms: electron |
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| neurotropic | (adjective) (of a virus, toxin, or chemical) tending to attack or affect the nervous system preferentially | - |
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| neurotropism | (noun) an affinity for neural tissues | - |
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| neutron | (noun) an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus | - |
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| neutropenia | (noun) leukopenia in which the decrease is primarily in number of neutrophils (the chief phagocytic leukocyte) | - |
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| neutrophil | (noun) the chief phagocytic leukocyte; stains with either basic or acid dyes | Synonyms: neutrophile |
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| neutrophile | (noun) the chief phagocytic leukocyte; stains with either basic or acid dyes | Synonyms: neutrophil |
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| nitrobacteria | (noun) soil bacteria that convert nitrites to nitrates | Synonyms: nitric bacteria |
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| nitrobacterium | (noun) any of the bacteria in the soil that take part in the nitrogen cycle; they oxidize ammonium compounds into nitrites or oxidize nitrites into nitrates | - |
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| nitrobenzene | (noun) a poisonous oily water-soluble liquid used as a solvent and in the manufacture of aniline | - |
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| nitrocalcite | (noun) the mineral form of calcium nitrate | - |
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| nitrocellulose | (noun) a nitric acid ester; used in lacquers and explosives | Synonyms: cellulose nitrate, guncotton, nitrocotton |
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| nitrochloroform | (noun) a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas | Synonyms: chloropicrin |
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| nitrochloromethane | (noun) gaseous form of chloropicrin used as tear gas | - |
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| nitrocotton | (noun) a nitric acid ester; used in lacquers and explosives | Synonyms: cellulose nitrate, guncotton, nitrocellulose |
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| nitrofuran | (noun) derivative of furan used to inhibit bacterial growth | - |
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| nitrofurantoin | (noun) derivative of nitrofuran used as an antibacterial medicine (trade name Macrodantin) effective against a broad range of Gram-positive and Gram-negative bacteria; used to treat infections of the urinary tract | Synonyms: Macrodantin |
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| nitrogen | (noun) a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues | Synonyms: atomic number 7, N |
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| nitrogenase | (noun) an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia | - |
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| nitrogenise | (verb) treat with nitrogen or a nitrogen compound | Synonyms: nitrify, nitrogenize |
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| nitrogenize | (verb) treat with nitrogen or a nitrogen compound | Synonyms: nitrify, nitrogenise |
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| nitrogenous | (adjective) of or relating to or containing nitrogen | Synonyms: nitrogen-bearing |
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| nitroglycerin | (noun) a heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator (trade names Nitrospan and Nitrostat) | Synonyms: glyceryl trinitrate, nitroglycerine, Nitrospan, Nitrostat, trinitroglycerin |
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| nitroglycerine | (noun) a heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator (trade names Nitrospan and Nitrostat) | Synonyms: glyceryl trinitrate, nitroglycerin, Nitrospan, Nitrostat, trinitroglycerin |
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| nitrosobacteria | (noun) soil bacteria that oxidize ammonia to nitrites | Synonyms: nitrous bacteria |
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| nitrous | (adjective) of or containing nitrogen | Synonyms: azotic, nitric |
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| noncontroversial | (adjective) not likely to arouse controversy | Synonyms: uncontroversial |
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| octroi | (noun) a tax on various goods brought into a town | - |
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| oestrogen | (noun) a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics | Synonyms: estrogen |
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