| abstruse | (adjective) difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge | Synonyms: deep, recondite |
|---|
| abstrusely | (adverb) in a manner difficult to understand | - |
|---|
| abstruseness | (noun) the quality of being unclear or abstruse and hard to understand | Synonyms: obscureness, obscurity, reconditeness |
|---|
| (noun) wisdom that is recondite and abstruse and profound | Synonyms: abstrusity, profoundness, profundity, reconditeness |
| abstrusity | (noun) wisdom that is recondite and abstruse and profound | Synonyms: abstruseness, profoundness, profundity, reconditeness |
|---|
| acarus | (noun) any of several mites of the order Acarina | Synonyms: genus Acarus |
|---|
| adenovirus | (noun) any of a group of viruses including those that in humans cause upper respiratory infections or infectious pinkeye | - |
|---|
| airbrush | (noun) an atomizer to spray paint by means of compressed air | - |
|---|
| (verb) paint with an airbrush | - |
| allosaurus | (noun) late Jurassic carnivorous dinosaur; similar to but somewhat smaller than tyrannosaurus | Synonyms: allosaur |
|---|
| alphavirus | (noun) an arbovirus of the family Togaviridae that can cause a variety of encephalitis in horses | - |
|---|
| anestrus | (noun) applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus | Synonyms: anestrum, anoestrum, anoestrus |
|---|
| ankylosaurus | (noun) having the back covered with thick bony plates; thought to have walked with a sprawling gait resembling a lizard's | Synonyms: ankylosaur |
|---|
| anoestrus | (noun) applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus | Synonyms: anestrum, anestrus, anoestrum |
|---|
| antitrust | (adjective) of laws and regulations; designed to protect trade and commerce from unfair business practices | Synonyms: antimonopoly |
|---|
| apatosaurus | (noun) huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic | Synonyms: apatosaur, Apatosaurus excelsus, brontosaur, brontosaurus, thunder lizard |
|---|
| arborvirus | (noun) a large heterogeneous group of RNA viruses divisible into groups on the basis of the virions; they have been recovered from arthropods, bats, and rodents; most are borne by arthropods; they are linked by the epidemiologic concept of transmission between vertebrate hosts by arthropod vectors (mosquitoes, ticks, sandflies, midges, etc.) that feed on blood; they can cause mild fevers, hepatitis, hemorrhagic fever, and encephalitis | Synonyms: arbovirus |
|---|
| arbovirus | (noun) a large heterogeneous group of RNA viruses divisible into groups on the basis of the virions; they have been recovered from arthropods, bats, and rodents; most are borne by arthropods; they are linked by the epidemiologic concept of transmission between vertebrate hosts by arthropod vectors (mosquitoes, ticks, sandflies, midges, etc.) that feed on blood; they can cause mild fevers, hepatitis, hemorrhagic fever, and encephalitis | Synonyms: arborvirus |
|---|
| arenavirus | (noun) animal viruses belonging to the family Arenaviridae | - |
|---|
| babirusa | (noun) Indonesian wild pig with enormous curved canine teeth | Synonyms: babiroussa, babirussa, Babyrousa Babyrussa |
|---|
| babirussa | (noun) Indonesian wild pig with enormous curved canine teeth | Synonyms: babiroussa, babirusa, Babyrousa Babyrussa |
|---|
| barosaurus | (noun) a dinosaur that could grow to be as tall as a building five stories tall | Synonyms: barosaur |
|---|
| bottlebrush | (noun) a cylindrical brush on a thin shaft that is used to clean bottles | - |
|---|
| brontosaurus | (noun) huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic | Synonyms: apatosaur, apatosaurus, Apatosaurus excelsus, brontosaur, thunder lizard |
|---|
| brush | (noun) a minor short-term fight | Synonyms: clash, encounter, skirmish |
|---|
| (noun) the act of brushing your hair | Synonyms: brushing |
| (noun) the act of brushing your teeth | Synonyms: brushing |
| (noun) contact with something dangerous or undesirable | - |
| (noun) a bushy tail or part of a bushy tail (especially of the fox) | - |
| (noun) an implement that has hairs or bristles firmly set into a handle | - |
| (noun) conducts current between rotating and stationary parts of a generator or motor | - |
| (noun) momentary contact | Synonyms: light touch |
| (noun) a dense growth of bushes | Synonyms: brushwood, coppice, copse, thicket |
| (verb) remove with or as if with a brush | - |
| (verb) touch lightly and briefly | - |
| (verb) rub with a brush, or as if with a brush | - |
| (verb) clean with a brush | - |
| (verb) cover by brushing | - |
| (verb) sweep across or over | Synonyms: sweep |
| brushed | (adjective) (of hair or clothing) groomed with a brush | - |
|---|
| (adjective) (of fabrics) having soft nap produced by brushing | Synonyms: fleecy, napped |
| (adjective) touched lightly in passing; grazed against | - |
| brushing | (noun) the act of brushing your hair | Synonyms: brush |
|---|
| (noun) the act of brushing your teeth | Synonyms: brush |
| brushlike | (adjective) resembling a brush | - |
|---|
| brushup | (noun) practice intended to polish performance or refresh the memory | Synonyms: review |
|---|
| brushwood | (noun) a dense growth of bushes | Synonyms: brush, coppice, copse, thicket |
|---|
| (noun) the wood from bushes or small branches | - |
| brushwork | (noun) an artist's distinctive technique of applying paint with a brush | - |
|---|
| brushy | (adjective) covered with or consisting of bushes or thickets | Synonyms: bosky |
|---|
| brusk | (adjective) marked by rude or peremptory shortness | Synonyms: brusque, curt, short |
|---|
| brusque | (adjective) marked by rude or peremptory shortness | Synonyms: brusk, curt, short |
|---|
| brusquely | (adverb) in a blunt direct manner | Synonyms: bluffly, bluntly, flat out, roundly |
|---|
| brusqueness | (noun) an abrupt discourteous manner | Synonyms: abruptness, curtness, gruffness, shortness |
|---|
| bullrush | (noun) tall rush with soft erect or arching stems found in Eurasia, Australia, New Zealand, and common in North America | Synonyms: bulrush, common rush, Juncus effusus, soft rush |
|---|
| (noun) tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down; its long flat leaves are used for making mats and chair seats; of North America, Europe, Asia and North Africa | Synonyms: bulrush, cat's-tail, nailrod, reed mace, reedmace, Typha latifolia |
| bulrush | (noun) tall rush with soft erect or arching stems found in Eurasia, Australia, New Zealand, and common in North America | Synonyms: bullrush, common rush, Juncus effusus, soft rush |
|---|
| (noun) tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down; its long flat leaves are used for making mats and chair seats; of North America, Europe, Asia and North Africa | Synonyms: bullrush, cat's-tail, nailrod, reed mace, reedmace, Typha latifolia |
| bunyavirus | (noun) an animal virus belonging to the family Bunyaviridae; can be used as a bioweapon | - |
|---|
| ceratosaurus | (noun) primitive medium-sized theropod; swift-running bipedal carnivorous dinosaur having grasping hands with sharp claws and a short horn between the nostrils; Jurassic in North America | Synonyms: ceratosaur |
|---|
| ceruse | (noun) a poisonous white pigment that contains lead | Synonyms: lead carbonate, white lead |
|---|
| cerussite | (noun) a mineral consisting of lead carbonate that is an important source of lead | Synonyms: white lead ore |
|---|
| chorus | (noun) the part of a song where a soloist is joined by a group of singers | Synonyms: refrain |
|---|
| (noun) any utterance produced simultaneously by a group | - |
| (noun) a group of people assembled to sing together | - |
| (noun) a body of dancers or singers who perform together | Synonyms: chorus line |
| (noun) a company of actors who comment (by speaking or singing in unison) on the action in a classical Greek play | Synonyms: Greek chorus |
| (verb) utter in unison | - |
| (verb) sing in a choir | Synonyms: choir |
| cirrus | (noun) a slender flexible animal appendage as on barnacles or crinoids or many insects; often tactile | - |
|---|
| (noun) a wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles) | Synonyms: cirrus cloud |
| (noun) usually coiled | Synonyms: cirrhus |
| citrus | (noun) any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions | Synonyms: citrous fruit, citrus fruit |
|---|
| (noun) any of numerous tropical usually thorny evergreen trees of the genus Citrus having leathery evergreen leaves and widely cultivated for their juicy edible fruits having leathery aromatic rinds | Synonyms: citrus tree |
| clothesbrush | (noun) a brush used for cleaning clothing | - |
|---|
| corchorus | (noun) any of various plants of the genus Corchorus having large leaves and cymose clusters of yellow flowers; a source of jute | - |
|---|
| coronavirus | (noun) a viral disease caused by SARS-CoV-2 that caused a global pandemic in 2020 | Synonyms: 2019-nCoV acute respiratory disease, corona, coronavirus disease 2019, COVID-19, novel coronavirus pneumonia, Wuhan coronavirus, Wuhan flu, Wuhan pneumonia, Wuhan virus |
|---|
| coruscant | (adjective) having brief brilliant points or flashes of light | Synonyms: aglitter, fulgid, glinting, glistering, glittering, glittery, scintillant, scintillating, sparkly |
|---|
| coruscate | (verb) be lively or brilliant or exhibit virtuosity | Synonyms: scintillate, sparkle |
|---|
| (verb) reflect brightly | Synonyms: scintillate, sparkle |
| coruscation | (noun) a sudden or striking display of brilliance | - |
|---|
| (noun) the occurrence of a small flash or spark | Synonyms: glitter, sparkle |
| corythosaurus | (noun) duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet | Synonyms: corythosaur |
|---|
| coxsackievirus | (noun) enterovirus causing a disease resembling poliomyelitis but without paralysis | Synonyms: Coxsackie virus |
|---|
| crus | (noun) the leg from the knee to foot | - |
|---|
| crusade | (noun) a series of actions advancing a principle or tending toward a particular end | Synonyms: campaign, cause, drive, effort, movement |
|---|
| (verb) go on a crusade; fight a holy war | - |
| (verb) exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for | Synonyms: agitate, campaign, fight, press, push |
| crusader | (noun) a disputant who advocates reform | Synonyms: meliorist, reformer, reformist, social reformer |
|---|
| cruse | (noun) small jar; holds liquid (oil or water) | - |
|---|
| crush | (noun) the act of crushing | Synonyms: compaction, crunch |
|---|
| (noun) temporary love of an adolescent | Synonyms: calf love, infatuation, puppy love |
| (noun) a dense crowd of people | Synonyms: jam, press |
| (noun) leather that has had its grain pattern accentuated | Synonyms: crushed leather |
| (verb) break into small pieces | - |
| (verb) become injured, broken, or distorted by pressure | - |
| (verb) come out better in a competition, race, or conflict | Synonyms: beat, beat out, shell, trounce, vanquish |
| (verb) make ineffective | Synonyms: break down |
| (verb) to compress with violence, out of natural shape or condition | Synonyms: mash, squash, squeeze, squelch |
| (verb) crush or bruise | Synonyms: jam |
| (verb) humiliate or depress completely | Synonyms: smash |
| (verb) come down on or keep down by unjust use of one's authority | Synonyms: oppress, suppress |
| crushed | (adjective) subdued or brought low in condition or status | Synonyms: broken, humbled, humiliated, low |
|---|
| (adjective) treated so as to have a permanently wrinkled appearance | - |
| crusher | (noun) a device that crushes something | - |
|---|
| crushing | (adjective) physically or spiritually devastating; often used in combination | Synonyms: devastating |
|---|
| (noun) forceful prevention; putting down by power or authority | Synonyms: quelling, stifling, suppression |
| crushingly | (adverb) in a crushing manner | - |
|---|
| crust | (noun) the trait of being rude and impertinent; inclined to take liberties | Synonyms: cheekiness, freshness, gall, impertinence, impudence, insolence |
|---|
| (noun) the outer layer of the Earth | Synonyms: Earth's crust |
| (noun) a hard outer layer that covers something | Synonyms: encrustation, incrustation |
| (verb) form a crust or form into a crust | - |
| crustacean | (adjective) of or belonging to the class Crustacea | Synonyms: crustaceous |
|---|
| (noun) any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton | - |
| crustaceous | (adjective) being or having or resembling a hard crust or shell | - |
|---|
| (adjective) of or belonging to the class Crustacea | Synonyms: crustacean |
| crustal | (adjective) of or relating to or characteristic of the crust of the earth or moon | - |
|---|
| crusted | (adjective) having a hardened crust as a covering | Synonyms: crustlike, crusty, encrusted |
|---|
| crustlike | (adjective) having a hardened crust as a covering | Synonyms: crusted, crusty, encrusted |
|---|
| crustose | (adjective) (of lichens) having a thin crusty thallus that adheres closely to the surface on which it is growing | - |
|---|
| crusty | (adjective) having a hardened crust as a covering | Synonyms: crusted, crustlike, encrusted |
|---|
| (adjective) brusque and surly and forbidding | Synonyms: curmudgeonly, gruff, ill-humored, ill-humoured |
| cytomegalovirus | (noun) any of a group of herpes viruses that enlarge epithelial cells and can cause birth defects; can affect humans with impaired immunological systems | Synonyms: CMV |
|---|
| deinocheirus | (noun) lightly built medium-sized theropod with long limbs and neck | - |
|---|
| diestrus | (noun) (of animals having several estrous cycles in one breeding season) a state or interval of sexual inactivity or quiescence between periods of activity | Synonyms: diestrum |
|---|
| distrust | (noun) the trait of not trusting others | Synonyms: distrustfulness, mistrust |
|---|
| (noun) doubt about someone's honesty | Synonyms: misgiving, mistrust, suspicion |
| (verb) regard as untrustworthy; regard with suspicion; have no faith or confidence in | Synonyms: mistrust, suspect |
| distrustful | (adjective) having or showing distrust | - |
|---|
| distrustfully | (adverb) with distrust | Synonyms: mistrustfully |
|---|
| distrustfulness | (noun) the trait of not trusting others | Synonyms: distrust, mistrust |
|---|
| drusen | (noun) (plural) an eye disease resulting from small accumulations of hyaline bodies underneath the retina | - |
|---|
| echovirus | (noun) any of a group of viruses associated with various diseases including viral meningitis and mild respiratory disorders and diarrhea in newborn infants | - |
|---|
| edaphosaurus | (noun) heavy-bodied reptile with a dorsal sail or crest; of the late Paleozoic | - |
|---|
| edmontosaurus | (noun) duck-billed dinosaur from Canada found as a fossilized mummy with skin | - |
|---|
| electrophorus | (noun) a simple electrostatic generator that generates repeated charges of static electricity | - |
|---|
| encrust | (verb) form a crust or a hard layer | Synonyms: incrust |
|---|
| (verb) cover or coat with a crust | Synonyms: incrust |
| (verb) decorate or cover lavishly (as with gems) | Synonyms: beset, incrust |
| encrustation | (noun) a decorative coating of contrasting material that is applied to a surface as an inlay or overlay | Synonyms: incrustation |
|---|
| (noun) a hard outer layer that covers something | Synonyms: crust, incrustation |
| (noun) the formation of a crust | Synonyms: incrustation |
| encrusted | (adjective) having a hardened crust as a covering | Synonyms: crusted, crustlike, crusty |
|---|
| enterovirus | (noun) any of a group of picornaviruses that infect the gastrointestinal tract and can spread to other areas (especially the nervous system) | - |
|---|
| entrust | (verb) confer a trust upon | Synonyms: commit, confide, intrust, trust |
|---|
| (verb) put into the care or protection of someone | Synonyms: leave |
| estrus | (noun) applies to nonhuman mammals: a state or period of heightened sexual arousal and activity | Synonyms: heat, oestrus, rut |
|---|
| extrusion | (noun) squeezing out by applying pressure | Synonyms: expulsion |
|---|
| (noun) something that bulges out or is protuberant or projects from its surroundings | Synonyms: bulge, bump, excrescence, gibbosity, gibbousness, hump, jut, prominence, protrusion, protuberance, swelling |
| extrusive | (adjective) of rock material; forced out while molten through cracks in the earth's surface | - |
|---|
| filovirus | (noun) animal viruses belonging to the family Filoviridae | - |
|---|
| flavivirus | (noun) animal viruses belonging to the family Flaviviridae | - |
|---|
| frustrate | (verb) treat cruelly | Synonyms: bedevil, crucify, dun, rag, torment |
|---|
| (verb) hinder or prevent (the efforts, plans, or desires) of | Synonyms: baffle, bilk, cross, foil, queer, scotch, spoil, thwart |
| frustrated | (adjective) disappointingly unsuccessful | Synonyms: defeated, disappointed, discomfited, foiled, thwarted |
|---|
| frustrating | (adjective) discouraging by hindering | - |
|---|
| (adjective) preventing realization or attainment of a desire | Synonyms: frustrative, thwarting |
| frustration | (noun) an act of hindering someone's plans or efforts | Synonyms: foiling, thwarting |
|---|
| (noun) the feeling that accompanies an experience of being thwarted in attaining your goals | Synonyms: defeat |
| (noun) a feeling of annoyance at being hindered or criticized | - |
| frustrative | (adjective) preventing realization or attainment of a desire | Synonyms: frustrating, thwarting |
|---|
| frustum | (noun) a truncated cone or pyramid; the part that is left when a cone or pyramid is cut by a plane parallel to the base and the apical part is removed | - |
|---|
| gyrus | (noun) a convex fold or elevation in the surface of the brain | Synonyms: convolution |
|---|
| hadrosaurus | (noun) any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic | Synonyms: duck-billed dinosaur, hadrosaur |
|---|
| hairbrush | (noun) a brush used to groom a person's hair | - |
|---|
| hepadnavirus | (noun) a group of animal DNA viruses including viruses of ducks and woodchucks and squirrels and others as well as the virus causing hepatitis B in humans | - |
|---|