| steriliser | (noun) a device for heating substances above their boiling point; used to manufacture chemicals or to sterilize surgical instruments | Synonyms: autoclave, sterilizer |
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| sterility | (noun) the state of being unable to produce offspring; in a woman it is an inability to conceive; in a man it is an inability to impregnate | Synonyms: infertility |
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| (noun) (of non-living objects) the state of being free of pathogenic organisms | Synonyms: antisepsis, asepsis, sterileness |
| sterilization | (noun) the act of making an organism barren or infertile (unable to reproduce) | Synonyms: sterilisation |
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| (noun) the procedure of making some object free of live bacteria or other microorganisms (usually by heat or chemical means) | Synonyms: sterilisation |
| sterilizer | (noun) a device for heating substances above their boiling point; used to manufacture chemicals or to sterilize surgical instruments | Synonyms: autoclave, steriliser |
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| sterling | (noun) British money; especially the pound sterling as the basic monetary unit of the UK | - |
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| stern | (noun) the rear part of a ship | Synonyms: after part, poop, quarter, tail |
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| (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, tail, tail end, tooshie, tush |
| sternness | (noun) uncompromising resolution | Synonyms: strictness |
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| (noun) the quality (as of scenery) being grim and gloomy and forbidding | - |
| sternocleidomastoid | (noun) one of two thick muscles running from the sternum and clavicle to the mastoid and occipital bone; turns head obliquely to the opposite side; when acting together they flex the neck and extend the head | Synonyms: musculus sternocleidomastoideus, sternocleido mastoideus, sternocleidomastoid muscle |
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| sternpost | (noun) (nautical) the principal upright timber at the stern of a vessel | - |
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| sternum | (noun) the flat bone that articulates with the clavicles and the first seven pairs of ribs | Synonyms: breastbone |
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| sternutation | (noun) a symptom consisting of the involuntary expulsion of air from the nose | Synonyms: sneeze, sneezing |
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| sternutator | (noun) a chemical substance that causes sneezing and coughing and crying | Synonyms: sternutatory |
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| sternutatory | (noun) a chemical substance that causes sneezing and coughing and crying | Synonyms: sternutator |
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| sternwheeler | (noun) a paddle steamer having the paddle wheel in the stern | - |
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| steroid | (noun) any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings; many have important physiological effects | - |
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| (noun) any hormone affecting the development and growth of sex organs | Synonyms: sex hormone, steroid hormone |
| sterol | (noun) any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances | Synonyms: steroid alcohol |
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| stertor | (noun) the act of snoring or producing a snoring sound | Synonyms: snore, snoring |
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| stethoscope | (noun) a medical instrument for listening to the sounds generated inside the body | - |
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| stevedore | (noun) a laborer who loads and unloads vessels in a port | Synonyms: dock-walloper, dock worker, docker, dockhand, dockworker, loader, longshoreman, lumper |
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| stevia | (noun) any plant of the genus Stevia or the closely related genus Piqueria having glutinous foliage and white or purplish flowers; Central and South America | - |
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| (noun) any plant of the genus Piqueria or the closely related genus Stevia | - |
| stew | (noun) food prepared by stewing especially meat or fish with vegetables | - |
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| (noun) agitation resulting from active worry | Synonyms: fret, lather, sweat, swither |
| steward | (noun) someone who manages property or other affairs for someone else | - |
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| (noun) a union member who is elected to represent fellow workers in negotiating with management | Synonyms: shop steward |
| (noun) one having charge of buildings or grounds or animals | Synonyms: custodian, keeper |
| (noun) an attendant on an airplane | Synonyms: flight attendant |
| (noun) the ship's officer who is in charge of provisions and dining arrangements | - |
| stewardess | (noun) a woman steward on an airplane | Synonyms: air hostess, hostess |
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| stewardship | (noun) the position of steward | - |
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| stewing | (noun) cooking in a liquid that has been brought to a boil | Synonyms: boiling, simmering |
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| (noun) an extreme state of worry and agitation | - |
| stewpan | (noun) a saucepan used for stewing | Synonyms: stewing pan |
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