| synapsid | (noun) extinct reptile having a single pair of lateral temporal openings in the skull | Synonyms: synapsid reptile |
|---|
| tabloid | (noun) newspaper with half-size pages | Synonyms: rag, sheet |
|---|
| (noun) sensationalist journalism | Synonyms: tab, yellow journalism |
| teiid | (noun) tropical New World lizard with a long tail and large rectangular scales on the belly and a long tail | Synonyms: teiid lizard |
|---|
| tenebrionid | (noun) sluggish hard-bodied black terrestrial weevil whose larvae feed on e.g. decaying plant material or grain | Synonyms: darkling beetle, darkling groung beetle |
|---|
| tepid | (adjective) feeling or showing little interest or enthusiasm | Synonyms: half-hearted, halfhearted, lukewarm |
|---|
| (adjective) moderately warm | Synonyms: lukewarm |
| teredinid | (noun) wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells | Synonyms: shipworm |
|---|
| tetranychid | (noun) web-spinning mite that attacks garden plants and fruit trees | Synonyms: spider mite |
|---|
| tettigoniid | (noun) grasshoppers with long threadlike antennae and well-developed stridulating organs on the forewings of the male | Synonyms: long-horned grasshopper |
|---|
| thalloid | (adjective) of or relating to or resembling or consisting of a thallus | - |
|---|
| therapsid | (noun) probably warm-blooded; considered direct ancestor of mammals | Synonyms: protomammal |
|---|
| theridiid | (noun) spider having a comb-like row of bristles on each hind foot | Synonyms: comb-footed spider |
|---|
| thripid | (noun) any of various small to minute sucking insects with narrow feathery wings if any; they feed on plant sap and many are destructive | Synonyms: thrip, thrips |
|---|
| thyroid | (adjective) suggestive of a thyroid disorder | - |
|---|
| (adjective) of or relating to the thyroid gland | Synonyms: thyroidal |
| (noun) located near the base of the neck | Synonyms: thyroid gland |
| timid | (adjective) showing fear and lack of confidence | - |
|---|
| (adjective) lacking self-confidence | Synonyms: diffident, shy, unsure |
| (adjective) lacking conviction or boldness or courage | Synonyms: faint-hearted, faint, fainthearted |
| (noun) people who are fearful and cautious | Synonyms: cautious |
| tineid | (noun) small yellowish moths whose larvae feed on wool or fur | Synonyms: tineid moth |
|---|
| tineoid | (noun) small dull-colored moth with chewing mouthparts | Synonyms: tineoid moth |
|---|
| toroid | (noun) a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle | Synonyms: torus |
|---|
| (noun) the doughnut-shaped object enclosed by a torus | - |
| torpid | (adjective) in a condition of biological rest or suspended animation | Synonyms: dormant, hibernating |
|---|
| (adjective) slow and apathetic | Synonyms: inert, sluggish, soggy |
| torrid | (adjective) extremely hot and dry | - |
|---|
| (adjective) emotionally charged and vigorously energetic | - |
| (adjective) characterized by intense emotion | Synonyms: ardent, fervent, fervid, fiery, impassioned, perfervid |
| tortricid | (noun) any of numerous small moths having lightly fringed wings; larvae are leaf rollers or live in fruits and galls | Synonyms: tortricid moth |
|---|
| toxoid | (noun) a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin | Synonyms: anatoxin |
|---|
| tracheid | (noun) long tubular cell peculiar to xylem | - |
|---|
| trapezoid | (noun) the wrist bone between the trapezium and the capitate bones | Synonyms: os trapezoideum, trapezoid bone |
|---|
| (noun) a quadrilateral with two parallel sides | - |
| trepid | (adjective) timid by nature or revealing timidity | Synonyms: fearful, timorous |
|---|
| tricuspid | (adjective) having three cusps or points (especially a molar tooth) | Synonyms: tricuspidate |
|---|
| trifid | (adjective) divided into three lobes | - |
|---|
| tripinnatifid | (adjective) (of a leaf shape) bipinnatifid with segments pinnatifid | - |
|---|
| triploid | (adjective) of a cell or organism having three complete sets of chromosomes | - |
|---|
| trombiculid | (noun) mite that as nymph and adult feeds on early stages of small arthropods but whose larvae are parasitic on terrestrial vertebrates | - |
|---|
| trombidiid | (noun) mite that in all stages feeds on other arthropods | - |
|---|
| tuberculoid | (adjective) resembling tuberculosis | - |
|---|
| tumid | (adjective) of sexual organs; stiff and rigid | Synonyms: erect |
|---|
| (adjective) ostentatiously lofty in style | Synonyms: bombastic, declamatory, large, orotund, turgid |
| (adjective) abnormally distended especially by fluids or gas | Synonyms: bloated, distended, intumescent, puffy, swollen, tumescent, turgid |
| turbid | (adjective) (of liquids) clouded as with sediment | Synonyms: cloudy, mirky, muddy, murky |
|---|
| turgid | (adjective) ostentatiously lofty in style | Synonyms: bombastic, declamatory, large, orotund, tumid |
|---|
| (adjective) abnormally distended especially by fluids or gas | Synonyms: bloated, distended, intumescent, puffy, swollen, tumescent, tumid |
| typhoid | (noun) serious infection marked by intestinal inflammation and ulceration; caused by Salmonella typhosa ingested with food or water | Synonyms: enteric fever, typhoid fever |
|---|
| tyrannid | (noun) a passerine bird of the suborder Tyranni | - |
|---|
| unafraid | (adjective) oblivious of dangers or perils or calmly resolute in facing them | Synonyms: fearless |
|---|
| (adjective) free from fear or doubt; easy in mind | Synonyms: secure, untroubled |
| unbraid | (verb) undo the braids of | - |
|---|
| underbid | (verb) bid too low | - |
|---|
| (verb) bid lower than a competing bidder | - |
| (verb) bid (a hand of cards) at less than the strength of the hand warrants | - |
| unicuspid | (adjective) having a single cusp or point | - |
|---|
| unpaid | (adjective) not paid | - |
|---|
| (adjective) engaged in as a pastime | Synonyms: amateur, recreational |
| (adjective) without payment | Synonyms: volunteer |
| unsaid | (adjective) not made explicit | Synonyms: unexpressed, unspoken, unstated, unuttered, unverbalised, unverbalized, unvoiced |
|---|
| upbraid | (verb) express criticism towards | Synonyms: reproach |
|---|
| valid | (adjective) well grounded in logic or truth or having legal force | - |
|---|
| (adjective) still legally acceptable | - |
| vapid | (adjective) lacking taste or flavor or tang | Synonyms: bland, flat, flavorless, flavourless, insipid, savorless, savourless |
|---|
| (adjective) lacking significance or liveliness or spirit or zest | - |
| vespertilionid | (noun) a variety of carnivorous bat | Synonyms: vespertilian bat |
|---|
| vespid | (noun) mostly social nest-building wasps | Synonyms: vespid wasp |
|---|
| viroid | (noun) the smallest of viruses; a plant virus with its RNA arranged in a circular chromosome without a protein coat | Synonyms: virusoid |
|---|
| virusoid | (noun) the smallest of viruses; a plant virus with its RNA arranged in a circular chromosome without a protein coat | Synonyms: viroid |
|---|
| viscid | (adjective) having the sticky properties of an adhesive | Synonyms: gluey, glutinous, gummy, mucilaginous, pasty, sticky, viscous |
|---|
| vivid | (adjective) having the clarity and freshness of immediate experience | - |
|---|
| (adjective) having strong or striking color | Synonyms: bright, brilliant |
| (adjective) evoking lifelike images within the mind | Synonyms: graphic, lifelike, pictorial |
| (adjective) (of color) having the highest saturation | Synonyms: intense |
| void | (adjective) containing nothing | - |
|---|
| (adjective) lacking any legal or binding force | Synonyms: null |
| (noun) an empty area or space | Synonyms: emptiness, vacancy, vacuum |
| (noun) the state of nonexistence | Synonyms: nihility, nothingness, nullity |
| (verb) excrete or discharge from the body | Synonyms: empty, evacuate |
| (verb) take away the legal force of or render ineffective | Synonyms: invalidate, vitiate |
| (verb) clear (a room, house, place) of occupants or empty or clear (a place or receptacle) of something | - |
| (verb) declare invalid | Synonyms: annul, avoid, invalidate, nullify, quash |
| yid | (noun) (ethnic slur) offensive term for a Jew | Synonyms: hymie, kike, sheeny |
|---|
| zooid | (noun) one of the distinct individuals forming a colonial animal such as a bryozoan or hydrozoan | - |
|---|
| zymoid | (adjective) resembling an enzyme | - |
|---|