| stearate | (noun) an ester of stearic acid. | - |
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| (noun) a salt of stearic acid. | - |
| stearin | (noun) an ester of glycerol and stearic acid | - |
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| steatite | (noun) a soft heavy compact variety of talc having a soapy feel; used to make hearths and tabletops and ornaments | Synonyms: soap-rock, soaprock, soapstone |
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| steatocystoma | (noun) a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked | Synonyms: pilar cyst, sebaceous cyst, wen |
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| steatopygia | (noun) an extreme accumulation of fat on the buttocks | - |
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| steatorrhea | (noun) the presence of greater than normal amounts of fat in the feces which are frothy and foul smelling and floating; a symptom of disorders of fat metabolism and malabsorption syndrome | - |
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| steed | (noun) (literary) a spirited horse for state of war | - |
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| steel | (noun) knife sharpener consisting of a ridged steel rod | - |
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| (noun) a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard | Synonyms: blade, brand, sword |
| (noun) an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range | - |
| steelmaker | (noun) a worker engaged in making steel | Synonyms: steelman, steelworker |
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| steelman | (noun) a worker engaged in making steel | Synonyms: steelmaker, steelworker |
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| steelworker | (noun) a worker engaged in making steel | Synonyms: steelmaker, steelman |
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| steelworks | (noun) a factory where steel is made | Synonyms: steel factory, steel mill, steel plant |
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| steelyard | (noun) a portable balance consisting of a pivoted bar with arms of unequal length | Synonyms: beam scale, lever scale |
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| steenbok | (noun) small plains antelope of southeastern Africa | Synonyms: Raphicerus campestris, steinbok |
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| steep | (noun) a steep place (as on a hill) | - |
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| steeper | (noun) a vessel (usually a pot or vat) used for steeping | - |
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| steeple | (noun) a tall tower that forms the superstructure of a building (usually a church or temple) and that tapers to a point at the top | Synonyms: spire |
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| steeplechase | (noun) a horse race over an obstructed course | - |
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| (noun) a footrace of usually 3000 meters over a closed track with hurdles and a water jump | - |
| steeplechaser | (noun) a horse trained to run in steeplechases | - |
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| steeplejack | (noun) someone who builds or maintains very tall structures | - |
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| steepness | (noun) the property possessed by a slope that is very steep | Synonyms: abruptness, precipitousness |
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| steer | (noun) castrated bull | Synonyms: bullock |
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| (noun) an indication of potential opportunity | Synonyms: confidential information, hint, lead, tip, wind |
| steerage | (noun) the act of steering a ship | Synonyms: steering |
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| (noun) the cheapest accommodations on a passenger ship | - |
| steerageway | (noun) (nautical) the minimum rate of motion needed for a vessel to be maneuvered | - |
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| steerer | (noun) a beguiler who leads someone into danger (usually as part of a plot) | Synonyms: decoy |
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| (noun) the person who steers a ship | Synonyms: helmsman, steersman |
| steering | (noun) the act of setting and holding a course | Synonyms: direction, guidance |
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| (noun) the act of guiding or showing the way | Synonyms: guidance |
| (noun) the act of steering a ship | Synonyms: steerage |
| steersman | (noun) the person who steers a ship | Synonyms: helmsman, steerer |
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| steganography | (noun) act of writing in code or cipher | Synonyms: coding, cryptography, secret writing |
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| stegosaur | (noun) herbivorous ornithischian dinosaur with a row of bony plates along its back and a spiked tail probably used as a weapon | Synonyms: Stegosaur stenops, stegosaurus |
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| stegosaurus | (noun) herbivorous ornithischian dinosaur with a row of bony plates along its back and a spiked tail probably used as a weapon | Synonyms: stegosaur, Stegosaur stenops |
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| stein | (noun) a mug intended for serving beer | Synonyms: beer mug |
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| steinbok | (noun) small plains antelope of southeastern Africa | Synonyms: Raphicerus campestris, steenbok |
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| stela | (noun) an ancient upright stone slab bearing markings | Synonyms: stele |
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| stele | (noun) an ancient upright stone slab bearing markings | Synonyms: stela |
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| (noun) the usually cylindrical central vascular portion of the axis of a vascular plant | - |
| stelis | (noun) any of various small tropical American orchids of the genus Stelis having long slender racemes of numerous small to minute flowers | - |
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| stem | (noun) a turn made in skiing; the back of one ski is forced outward and the other ski is brought parallel to it | Synonyms: stem turn |
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| (noun) front part of a vessel or aircraft | Synonyms: bow, fore, prow |
| (noun) the tube of a tobacco pipe | - |
| (noun) cylinder forming a long narrow part of something | Synonyms: shank |
| (noun) (linguistics) the form of a word after all affixes are removed | Synonyms: base, radical, root, root word, theme |
| (noun) a slender or elongated structure that supports a plant or fungus or a plant part or plant organ | Synonyms: stalk |
| stemma | (noun) an eye having a single lens | Synonyms: ocellus, simple eye |
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| (noun) the hereditary derivation of an individual | Synonyms: ancestry, blood, blood line, bloodline, descent, line, line of descent, lineage, origin, parentage, pedigree, stock |
| (noun) a tree diagram showing a reconstruction of the transmission of manuscripts of a literary work | - |
| stemmatics | (noun) the humanistic discipline that attempts to reconstruct the transmission of a text (especially a text in manuscript form) on the basis of relations between the various surviving manuscripts (sometimes using cladistic analysis) | Synonyms: stemmatology |
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| stemmatology | (noun) the humanistic discipline that attempts to reconstruct the transmission of a text (especially a text in manuscript form) on the basis of relations between the various surviving manuscripts (sometimes using cladistic analysis) | Synonyms: stemmatics |
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| stemmer | (noun) a device for removing stems from fruit (as from grapes or apples) | - |
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| (noun) a miner's tamping bar for ramming packing in over a blasting charge | - |
| (noun) an algorithm for removing inflectional and derivational endings in order to reduce word forms to a common stem | Synonyms: stemming algorithm |
| (noun) a worker who makes or applies stems for artificial flowers | - |
| (noun) a worker who strips the stems from moistened tobacco leaves and binds the leaves together into books | Synonyms: sprigger, stripper |
| stench | (noun) a distinctive odor that is offensively unpleasant | Synonyms: fetor, foetor, malodor, malodour, mephitis, reek, stink |
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| stencil | (noun) a sheet of material (metal, plastic, cardboard, waxed paper, silk, etc.) that has been perforated with a pattern (printing or a design); ink or paint can pass through the perforations to create the printed pattern on the surface below | - |
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| stenograph | (noun) a machine for typewriting shorthand characters | - |
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| (noun) a shorthand character | - |
| stenographer | (noun) someone skilled in the transcription of speech (especially dictation) | Synonyms: amanuensis, shorthand typist |
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| stenography | (noun) the act or art of writing in shorthand | - |
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| (noun) a method of writing rapidly using an abbreviated symbolic system | Synonyms: shorthand, tachygraphy |
| stenopterygius | (noun) an ichthyosaur of the genus Stenopterygius | Synonyms: Stenopterygius quadrisicissus |
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| stenosis | (noun) abnormal narrowing of a bodily canal or passageway | Synonyms: stricture |
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| stent | (noun) a slender tube inserted inside a tubular body part (as a blood vessel) to provide support during and after surgical anastomosis | - |
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| stentor | (noun) any of several trumpet-shaped ciliate protozoans that are members of the genus Stentor | - |
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| (noun) a speaker with an unusually loud voice | - |
| step | (noun) the act of changing location by raising the foot and setting it down | - |
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| (noun) any maneuver made as part of progress toward a goal | Synonyms: measure |
| (noun) a sequence of foot movements that make up a particular dance | Synonyms: dance step |
| (noun) support consisting of a place to rest the foot while ascending or descending a stairway | Synonyms: stair |
| (noun) a solid block joined to the beams in which the heel of a ship's mast or capstan is fixed | - |
| (noun) a musical interval of two semitones | Synonyms: tone, whole step, whole tone |
| (noun) a mark of a foot or shoe on a surface | Synonyms: footmark, footprint |
| (noun) the sound of a step of someone walking | Synonyms: footfall, footstep |
| (noun) the distance covered by a step | Synonyms: footstep, pace, stride |
| (noun) a short distance | Synonyms: stone's throw |
| (noun) relative position in a graded series | Synonyms: gradation |
| stepbrother | (noun) a brother who has only one parent in common with you | Synonyms: half-brother, half brother |
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| stepchild | (noun) a child of your spouse by a former marriage | - |
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| stepdaughter | (noun) a daughter of your spouse by a former marriage | - |
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| stepfather | (noun) the husband of your mother by a subsequent marriage | - |
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| stephanion | (noun) the craniometric point on the coronal suture above the acoustic meatus | - |
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| stephanotis | (noun) any of various evergreen climbing shrubs of the genus Stephanotis having fragrant waxy flowers | - |
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| stephead | (noun) a headline with the top line flush left and succeeding lines indented to the right | Synonyms: drop line, dropline, stagger head, staggered head, stepped line |
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| stepladder | (noun) a folding portable ladder hinged at the top | Synonyms: step ladder |
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| stepmother | (noun) the wife of your father by a subsequent marriage | - |
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| stepparent | (noun) the spouse of your parent by a subsequent marriage | - |
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| steppe | (noun) extensive plain without trees (associated with eastern Russia and Siberia) | - |
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| stepper | (noun) a horse trained to lift its feet high off the ground while walking or trotting | Synonyms: high stepper |
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| (noun) a motor (especially an electric motor) that moves or rotates in small discrete steps | Synonyms: stepping motor |
| (noun) a professional dancer | Synonyms: hoofer |
| steprelationship | (noun) a family relationship by virtue of remarriage | - |
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| steps | (noun) a flight of stairs or a flight of steps | Synonyms: stairs |
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| (noun) the course along which a person has walked or is walking in | - |
| stepsister | (noun) a sister who has only one parent in common with you | Synonyms: half-sister, half sister |
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| stepson | (noun) the son of your spouse by a former marriage | - |
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| steradian | (noun) the unit of solid angle adopted under the Systeme International d'Unites | Synonyms: sr |
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| stercobilinogen | (noun) a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine | Synonyms: urobilinogen |
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| stercolith | (noun) a hard mass of fecal matter | Synonyms: coprolith, faecalith, fecalith |
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| sterculia | (noun) any tree of the genus Sterculia | - |
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| stereo | (noun) reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound | Synonyms: stereo system, stereophonic system, stereophony |
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| (noun) two photographs taken from slightly different angles that appear three-dimensional when viewed together | Synonyms: stereoscopic photograph, stereoscopic picture |
| stereochromy | (noun) a process of mural painting in which the pigment is fixed by a series of reactions between the lime, fluosilicic acid, and water glass. | - |
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| stereoisomer | (noun) any of a group of isomers in which atoms are linked in the same order but differ in their spatial arrangement. | - |
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| stereophony | (noun) reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound | Synonyms: stereo, stereo system, stereophonic system |
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| stereophotography | (noun) photography producing images that appear to have depth and solidness and that are created by using a special device (called a stereoscope) to look at two slightly different photographs of something at the same time. | Synonyms: stereo photography, stereoscopic photography |
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| stereoscope | (noun) an optical device for viewing stereoscopic photographs | - |
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| stereoscopy | (noun) three-dimensional vision produced by the fusion of two slightly different views of a scene on each retina | Synonyms: stereoscopic vision |
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| stereotype | (noun) a conventional or formulaic conception or image | - |
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| sterileness | (noun) (of non-living objects) the state of being free of pathogenic organisms | Synonyms: antisepsis, asepsis, sterility |
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| sterilisation | (noun) the act of making an organism barren or infertile (unable to reproduce) | Synonyms: sterilization |
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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: sterilization |
| 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 | - |