| serine | (noun) a sweetish crystalline amino acid involved in the synthesis by the body of cysteine | - |
|---|
| serotine | (noun) common brown bat of Europe | Synonyms: Eptesicus serotinus, European brown bat |
|---|
| serpentine | (adjective) resembling a serpent in form | Synonyms: snakelike, snaky |
|---|
| sertraline | (noun) a selective-serotonin reuptake inhibitor commonly prescribed as an antidepressant (trade name Zoloft) | Synonyms: Zoloft |
|---|
| setline | (noun) a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys) | Synonyms: spiller, trawl, trawl line, trotline |
|---|
| shine | (noun) the quality of being bright and sending out rays of light | Synonyms: effulgence, radiance, radiancy, refulgence, refulgency |
|---|
| (verb) make (a surface) shine | Synonyms: polish, smooth, smoothen |
| (verb) experience a feeling of well-being or happiness, as from good health or an intense emotion | Synonyms: beam, glow, radiate |
| (verb) be shiny, as if wet | Synonyms: gleam, glint, glisten, glitter |
| (verb) have a complexion with a strong bright color, such as red or pink | Synonyms: beam, glow, radiate |
| (verb) touch or seem as if touching visually or audibly | Synonyms: fall, strike |
| (verb) be distinguished or eminent | - |
| (verb) be clear and obvious | - |
| (verb) emit light; be bright, as of the sun or a light | Synonyms: beam |
| (verb) be bright by reflecting or casting light | Synonyms: reflect |
| (verb) throw or flash the light of (a lamp) | - |
| shoeshine | (noun) the act of shining shoes | - |
|---|
| (noun) a shiny finish put on shoes with polish and buffing | - |
| shoreline | (noun) a boundary line between land and water | - |
|---|
| shrine | (noun) a place of worship hallowed by association with some sacred thing or person | - |
|---|
| (verb) enclose in a shrine | Synonyms: enshrine |
| sibylline | (adjective) having a secret or hidden meaning | Synonyms: cabalistic, cryptic, cryptical, kabbalistic, qabalistic |
|---|
| (adjective) resembling or characteristic of a prophet or prophecy | Synonyms: divinatory, mantic, sibyllic, vatic, vatical |
| sideline | (noun) an auxiliary activity | Synonyms: avocation, by-line, hobby, pursuit, spare-time activity |
|---|
| (noun) an auxiliary line of merchandise | - |
| (noun) a line that marks the side boundary of a playing field | Synonyms: out of bounds |
| (verb) remove from the center of activity or attention; place into an inferior position | - |
| silvervine | (noun) ornamental vine of eastern Asia having yellow edible fruit and leaves with silver-white markings | Synonyms: Actinidia polygama, silver vine |
|---|
| simazine | (noun) a herbicide used to control weeds (especially among crops) | - |
|---|
| sine | (noun) ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle | Synonyms: sin |
|---|
| skyline | (noun) the line at which the sky and Earth appear to meet | Synonyms: apparent horizon, horizon, sensible horizon, visible horizon |
|---|
| (noun) the outline of objects seen against the sky | - |
| slackline | (noun) a partially tensioned line for balance or walking | - |
|---|
| snapline | (noun) a chalked string used in the building trades to make a straight line on a vertical surface | Synonyms: chalk line, snap line |
|---|
| sourdine | (noun) an organ stop resulting in a soft muted sound | - |
|---|
| (noun) a mute for a violin | Synonyms: sordino |
| sphingine | (adjective) resembling a sphinx | - |
|---|
| spine | (noun) a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin | - |
|---|
| (noun) the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved | Synonyms: backbone |
| (noun) the series of vertebrae forming the axis of the skeleton and protecting the spinal cord | Synonyms: back, backbone, rachis, spinal column, vertebral column |
| (noun) a small sharp-pointed tip resembling a spike on a stem or leaf | Synonyms: pricker, prickle, spikelet, sticker, thorn |
| (noun) any sharply pointed projection | Synonyms: acantha, spur |
| spline | (noun) a thin strip (wood or metal) | Synonyms: slat |
|---|
| (noun) a flexible strip (wood or rubber) used in drawing curved lines | - |
| storyline | (noun) the plot of a book or play or film | Synonyms: plot line |
|---|
| strapline | (noun) a secondary heading, especially one printed above another. | - |
|---|
| streamline | (verb) contour economically or efficiently | - |
|---|
| strychnine | (noun) an alkaloid plant toxin extracted chiefly from nux vomica; formerly used as a stimulant | - |
|---|
| subalpine | (adjective) growing at high altitudes | Synonyms: alpestrine |
|---|
| submarine | (adjective) beneath the surface of the sea | Synonyms: undersea |
|---|
| (noun) a submersible warship usually armed with torpedoes | Synonyms: pigboat, sub |
| (noun) a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States | Synonyms: bomber, Cuban sandwich, grinder, hero, hero sandwich, hoagie, hoagy, Italian sandwich, poor boy, sub, submarine sandwich, torpedo, wedge, zep |
| (verb) attack by submarine | - |
| (verb) bring down with a blow to the legs | - |
| (verb) throw with an underhand motion | - |
| (verb) control a submarine | - |
| (verb) move forward or under in a sliding motion | - |
| subroutine | (noun) a set sequence of steps, part of larger computer program | Synonyms: function, procedure, routine, subprogram |
|---|
| succinylcholine | (noun) a muscle relaxant for striated muscle that is used as an adjunct to anesthesia during certain surgical procedures | - |
|---|
| sulfadiazine | (noun) a sulfa drug used in treating meningitis and pneumonia and other infections | - |
|---|
| sulfamethazine | (noun) a sulfa drug used like sulfadiazine and also in veterinary medicine | Synonyms: sulfamezathine |
|---|
| sulfamezathine | (noun) a sulfa drug used like sulfadiazine and also in veterinary medicine | Synonyms: sulfamethazine |
|---|
| sulfapyridine | (noun) sulfa drug derived from pyridine and sulfanilamide | - |
|---|
| sunshine | (noun) the quality of being cheerful and dispelling gloom | Synonyms: cheer, cheerfulness, sunniness |
|---|
| (noun) the rays of the sun | Synonyms: sun, sunlight |
| (noun) moderate weather; suitable for outdoor activities | Synonyms: fair weather, temperateness |
| superfine | (adjective) (used especially of merchandise) very fine in quality | - |
|---|
| (adjective) of extremely fine size or texture | - |
| (adjective) excessively delicate or refined | Synonyms: overrefined |
| supine | (adjective) passive as a result of indolence or indifference | - |
|---|
| (adjective) lying face upward | Synonyms: resupine |
| swine | (noun) stout-bodied short-legged omnivorous animals | - |
|---|
| sylvine | (noun) a mineral consisting of native potassium chloride; an important ore of potassium that is found in sedimentary beds | Synonyms: sylvite |
|---|
| tambourine | (noun) a shallow drum with a single drumhead and with metallic disks in the sides | - |
|---|
| tangerine | (adjective) of a strong reddish orange color | - |
|---|
| (noun) a reddish to vivid orange color | - |
| (noun) any of various deep orange mandarins grown in the United States and southern Africa | - |
| (noun) a variety of mandarin orange, known in Telugu and Portugal as kamala kaya and in Australia as a mandarin | Synonyms: tangerine tree |
| tapeline | (noun) measuring instrument consisting of a narrow strip (cloth or metal) marked in inches or centimeters and used for measuring lengths | Synonyms: tape, tape measure |
|---|
| taurine | (adjective) of or relating to or resembling a bull | - |
|---|
| (noun) a colorless crystalline substance obtained from the bile of mammals | - |
| terbinafine | (noun) an oral antifungal drug (trade name Lamisil) used to treat cases of fungal nail disease | Synonyms: Lamisil |
|---|
| terrine | (noun) a pate or fancy meatloaf baked in an earthenware casserole | - |
|---|
| tetracaine | (noun) a crystalline compound used in the form of a hydrochloride as a local anesthetic | - |
|---|
| tetracycline | (noun) an antibiotic (trade name Achromycin) derived from microorganisms of the genus Streptomyces and used broadly to treat infections | Synonyms: Achromycin |
|---|
| tetraiodothyronine | (noun) hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells | Synonyms: T, thyroxin, thyroxine |
|---|
| tetramethyldiarsine | (noun) a poisonous oily liquid with a garlicky odor composed of 2 cacodyl groups; undergoes spontaneous combustion in dry air | Synonyms: cacodyl |
|---|
| theine | (noun) caffeine when present in tea. | - |
|---|
| theophylline | (noun) a colorless crystalline alkaloid derived from tea leaves or made synthetically; used in medicine as a bronchial dilator | Synonyms: Elixophyllin, Slo-Bid, Theobid |
|---|
| thiamine | (noun) a B vitamin that prevents beriberi; maintains appetite and growth | Synonyms: aneurin, antiberiberi factor, thiamin, vitamin B1 |
|---|
| thiazine | (noun) a compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom | - |
|---|
| thiodiphenylamine | (noun) a compound used primarily in veterinary medicine to rid farm animals of internal parasites | Synonyms: phenothiazine |
|---|
| thioguanine | (noun) an antineoplastic drug used to treat acute leukemias | - |
|---|
| thioridazine | (noun) a tranquilizer (trade name Mellaril) used to treat schizophrenia and other psychotic disorders | Synonyms: Mellaril |
|---|
| threonine | (noun) a colorless crystalline amino acid found in protein; occurs in the hydrolysates of certain proteins; an essential component of human nutrition | - |
|---|
| thylacine | (noun) rare doglike carnivorous marsupial of Tasmania having stripes on its back; probably extinct | Synonyms: Tasmanian tiger, Tasmanian wolf, Thylacinus cynocephalus |
|---|
| thymidine | (noun) a nucleoside component of DNA; composed of thymine and deoxyribose | Synonyms: deoxythymidine |
|---|
| thymine | (noun) a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine | Synonyms: T |
|---|
| thyronine | (noun) a phenolic amino acid of which thyroxine is a derivative | - |
|---|
| thyroxine | (noun) hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells | Synonyms: T, tetraiodothyronine, thyroxin |
|---|
| timberline | (noun) line marking the upper limit of tree growth in mountains or northern latitudes | Synonyms: timber line, tree line |
|---|
| timeline | (noun) a sequence of related events arranged in chronological order and displayed along a line (usually drawn left to right or top to bottom) | - |
|---|
| tine | (noun) prong on a fork or pitchfork or antler | - |
|---|
| tolazoline | (noun) vasodilator that is used to treat spasms of peripheral blood vessels (as in acrocyanosis) | - |
|---|
| tontine | (noun) an annuity scheme wherein participants share certain benefits and on the death of any participant his benefits are redistributed among the remaining participants; can run for a fixed period of time or until the death of all but one participant | - |
|---|
| (noun) a form of life insurance whereby on the death or default of a participant his share is distributed to the remaining members | Synonyms: tontine insurance |
| touchline | (noun) either of the sidelines in soccer or rugby | - |
|---|
| tourmaline | (noun) a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones | - |
|---|
| towline | (noun) (nautical) a rope used in towing | Synonyms: towing line, towing rope, towrope |
|---|
| tramline | (noun) the track on which trams or streetcars run | Synonyms: streetcar track, tramway |
|---|
| trampoline | (noun) gymnastic apparatus consisting of a strong canvas sheet attached with springs to a metal frame; used for tumbling | - |
|---|
| transalpine | (adjective) on or relating to or characteristic of the region or peoples beyond the Alps from Italy (or north of the Alps) | Synonyms: ultramontane |
|---|
| (noun) one living on or coming from the other side of the Alps from Italy | - |
| tranylcypromine | (noun) an antidepressant drug that is a monoamine oxidase inhibitor; administered as a sulfate | - |
|---|
| trephine | (noun) a surgical instrument used to remove sections of bone from the skull | Synonyms: trepan |
|---|
| (verb) operate on with a trephine | - |
| triazine | (noun) any of three isomeric compounds having three carbon and three nitrogen atoms in a six-membered ring | - |
|---|
| triiodothyronine | (noun) thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer | Synonyms: liothyronine, T |
|---|
| trimipramine | (noun) tricyclic antidepressant drug (trade name Surmontil) used to treat depression and anxiety and (sometimes) insomnia | Synonyms: Surmontil |
|---|
| trine | (noun) the cardinal number that is the sum of one and one and one | Synonyms: 3, deuce-ace, III, leash, tercet, ternary, ternion, terzetto, three, threesome, tierce, trey, triad, trinity, trio, triplet, troika |
|---|
| triphosphopyridine | (noun) a pyridine ring with three phosphorus groups | - |
|---|
| trotline | (noun) a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys) | Synonyms: setline, spiller, trawl, trawl line |
|---|
| tsine | (noun) wild ox of the Malay Archipelago | Synonyms: banteng, banting, Bos banteng |
|---|
| tubocurarine | (noun) a toxic alkaloid found in certain tropical South American trees that is a powerful relaxant for striated muscles | Synonyms: curare |
|---|
| turbine | (noun) rotary engine in which the kinetic energy of a moving fluid is converted into mechanical energy by causing a bladed rotor to rotate | - |
|---|
| turpentine | (noun) an oleoresin obtained from conifers (especially pines) | Synonyms: gum terpentine |
|---|
| (noun) volatile liquid distilled from turpentine oleoresin; used as paint thinner and solvent and medicinally | Synonyms: oil of turpentine, spirit of turpentine, turps |
| twine | (noun) a lightweight cord | Synonyms: string |
|---|
| (verb) spin, wind, or twist together | Synonyms: enlace, entwine, interlace, intertwine, lace |
| (verb) make by twisting together or intertwining | - |
| (verb) arrange or coil around | Synonyms: roll, wind, wrap |
| (verb) form into a spiral shape | Synonyms: distort, twist |
| tyramine | (noun) amino acid derived from tyrosine; has a sympathomimetic action; found in chocolate and cola drinks and ripe cheese and beer | - |
|---|
| tyrocidine | (noun) a basic polypeptide antibiotic derived from a soil bacterium; a major component of tyrothricin | Synonyms: tyrocidin |
|---|
| tyrosine | (noun) an amino acid found in most proteins; a precursor of several hormones | - |
|---|
| ultramarine | (adjective) of a brilliant pure blue to purplish blue color | - |
|---|
| (noun) a vivid blue to purple-blue color | - |
| (noun) blue pigment made of powdered lapis lazuli | Synonyms: ultramarine blue |
| underline | (noun) a line drawn underneath (especially under written matter) | Synonyms: underscore |
|---|
| (verb) give extra weight to (a communication) | Synonyms: emphasise, emphasize, underscore |
| (verb) draw a line or lines underneath to call attention to | Synonyms: underscore |
| undermine | (verb) hollow out as if making a cave or opening | Synonyms: cave |
|---|
| (verb) destroy property or hinder normal operations | Synonyms: counteract, countermine, sabotage, subvert, weaken |
| undine | (noun) any of various female water spirits | - |
|---|
| undiscipline | (noun) the trait of lacking discipline | Synonyms: indiscipline |
|---|
| unfeminine | (adjective) not suitable for a woman | - |
|---|
| untwine | (verb) undo what has been twined together | - |
|---|
| urine | (noun) liquid excretory product | Synonyms: pee, piddle, piss, water, weewee |
|---|
| ursine | (adjective) of or relating to or similar to bears | - |
|---|
| uterine | (adjective) of or involving the uterus | - |
|---|
| vaccine | (noun) immunogen consisting of a suspension of weakened or dead pathogenic cells injected in order to stimulate the production of antibodies | Synonyms: vaccinum |
|---|
| valentine | (noun) a sweetheart chosen to receive a greeting on Saint Valentine's Day | - |
|---|