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Glossary · MWE Terms · S

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TermTypeDefinitionClassificationsUpdated
Sinking FeelingnounMWEa feeling caused by uneasiness or apprehensionverifiedMay 18, 2026
Sinking FundnounMWEa fund accumulated regularly in a separate account and used to redeem debt securitiesverifiedMay 18, 2026
Sinking SpellnounMWEa temporary decline in health or valueverifiedMay 18, 2026
Sinoatrial NodenounMWEa specialized bit of heart tissue that controls the heartbeatverifiedMay 18, 2026
Sinus CavernosusnounMWEeither of a pair of large venous sinuses in the cranial cavityverifiedMay 18, 2026
Sinus CoronariusnounMWEa short sinus receiving most of the veins of the heartverifiedMay 18, 2026
Sinus EthmoidalesnounMWEa sinus of the meatuses of the nasal cavity (behind the bridge of the nose)verifiedMay 18, 2026
Sinus HeadachenounMWEa headache resulting from congestion or infection in the paranasal sinusesverifiedMay 18, 2026
Sinus ParanasalesnounMWEany of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavitiesverifiedMay 18, 2026
Sinus RectusnounMWEan unpaired sinus of the dura materverifiedMay 18, 2026
Sinus SigmoideusnounMWEan S-shaped dural sinus on the temporal and occipital bonesverifiedMay 18, 2026
Sinus TransversusnounMWEa paired dural sinusverifiedMay 18, 2026
Sinus Venosus ScleraenounMWEa circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veinsverifiedMay 18, 2026
Sinusoidal ProjectionnounMWEan equal-area map projection showing parallels and the equator as straight lines and other meridians as curvedverifiedMay 18, 2026
siphon offverbMWEconvey, draw off, or empty by or as if by a siphonverifiedJun 3, 2026
Siren CallnounMWEthe enticing appeal of something alluring but potentially dangerousverifiedMay 18, 2026
Siren SongnounMWEthe enticing appeal of something alluring but potentially dangerousverifiedMay 18, 2026
Sirenian MammalnounMWEany of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbsverifiedMay 18, 2026
Siris TreenounMWElarge spreading Old World tree having large leaves and globose clusters of greenish-yellow flowers and long seed pods that clatter in the windverifiedMay 18, 2026
Sirloin SteaknounMWEa cut of beef from the sirloinverifiedMay 18, 2026
Sirloin TipnounMWEa cut of beef from the upper end of the sirloinverifiedMay 18, 2026
Sisal FamilynounMWEchiefly tropical and xerophytic plants: includes Dracenaceae (Dracaenaceae)verifiedMay 18, 2026
Sisal HempnounMWEa plant fiber used for making ropeverifiedMay 18, 2026
Siskiyou LewisianounMWEevergreen perennial having a dense basal rosette of long spatula-shaped leaves and panicles of pink or white-and-red-striped or pink-purple flowersverifiedMay 18, 2026
Sister ShipnounMWEa ship that is one of two or more similar ships built at the same timeverifiedMay 18, 2026
sit aroundverbMWEbe around, often idly or without specific purposecandidateJun 3, 2026
sit backverbMWEbe inactive or indifferent while something is happeningcandidateJun 3, 2026
sit byverbMWEbe inactive or indifferent while something is happeningcandidateJun 3, 2026
sit downverbMWEshow to a seatverifiedJun 3, 2026
sit inverbMWEparticipate in an act of civil disobedienceverifiedJun 3, 2026
sit outverbMWEnot participate in (an activity, such as a dance or a sports event)verifiedJun 3, 2026
sit tightverbMWEmaintain the same positioncandidateJun 3, 2026
sit upverbMWEchange to an upright sitting positionverifiedJun 3, 2026
Sit-Down StrikenounMWEa strike in which workers refuse to leave the workplace until a settlement is reachedverifiedMay 18, 2026
Sitar PlayernounMWEa musician who plays the sitarverifiedMay 18, 2026
Site VisitnounMWEa visit in an official capacity to examine a site to determine its suitability for some enterpriseverifiedMay 18, 2026
Sitting DucknounMWEa defenseless victimverifiedMay 18, 2026
Sitting RoomnounMWEa room in a private house or establishment where people can sit and talk and relaxverifiedMay 18, 2026
Sitting TrotnounMWEthe rider sits still in the saddleverifiedMay 18, 2026
Situation ComedynounMWEa humorous television program based on situations that could arise in everyday lifeverifiedMay 18, 2026
situational awarenessnounMWEWithin a volume of time and space, the perception of an enterprise’s security posture and its threat environment; the comprehension/meaning of both taken together (risk); and the projection of their status into the near future.verifiedAug 30, 2026
Sitz BathnounMWEa bathtub in which your buttocks and hips are immersed as if you were sitting in a chair and you bathe in a sitting positionverifiedMay 18, 2026
Six TimesadverbMWEby a factor of sixcandidateMay 18, 2026
Six-Gilled SharknounMWElarge primitive shark widely distributed in warm seasverifiedMay 18, 2026
Six-Lined RacerunnernounMWEvery swift lizard of eastern and central United StatesverifiedMay 18, 2026
Sixpenny NailnounMWEa nail 2 inches longverifiedMay 18, 2026
Sixteenth NotenounMWEa musical note having the time value of a sixteenth of a whole noteverifiedMay 18, 2026
Sixteenth PartnounMWEone part in sixteen equal partsverifiedMay 18, 2026
Sixth Cranial NervenounMWEa small motor nerve supplying the lateral rectus muscle of the eyeverifiedMay 18, 2026
Sixth SensenounMWEgrasping the inner nature of things intuitivelyverifiedMay 18, 2026
Sixty-Fourth NotenounMWEa musical note having the time value of a sixty-fourth of a whole noteverifiedMay 18, 2026
Size ConstancynounMWEthe tendency to perceive the veridical size of a familiar object despite differences in their distance (and consequent differences in the size of the pattern projected on the retina of the eye)verifiedMay 18, 2026
Size of ItnounMWEthe actual state of affairsverifiedMay 18, 2026
Size SticknounMWEa mechanical measuring stick used by shoe fitters to measure the length and width of your footverifiedMay 18, 2026
size upverbMWEto look at critically or searchingly, or in minute detailverifiedJun 3, 2026
skate oververbMWEtreat hurriedly or avoid dealing with properlyverifiedJun 3, 2026
Skating RinknounMWEbuilding that contains a surface for ice skating or roller skatingverifiedMay 18, 2026
Skeen ArchnounMWEan arch whose height is less than half its widthverifiedMay 18, 2026
Skeet ShootingnounMWEthe sport of shooting at clay pigeons that are hurled upward in such a way as to simulate the flight of a birdverifiedMay 18, 2026
Skeeter HawknounMWEslender-bodied non-stinging insect having iridescent wings that are outspread at restverifiedMay 18, 2026
Skeletal FramenounMWEthe internal supporting structure that gives an artifact its shapeverifiedMay 18, 2026
Skeletal MusclenounMWEa muscle that is connected at either or both ends to a bone and so move parts of the skeletonverifiedMay 18, 2026
Skeletal StructurenounMWEany structure created by the skeleton of an organismverifiedMay 18, 2026
Skeletal SystemnounMWEthe hard structure, bones and cartilages, which provides a frame for the body of an animalverifiedMay 18, 2026
Skeleton Fork FernnounMWEpantropical epiphytic or terrestrial whisk fern with usually dull yellow branches and minute leavesverifiedMay 18, 2026
Skeleton in the ClosetnounMWEa scandal that is kept secretverifiedMay 18, 2026
Skeleton in the CupboardnounMWEa scandal that is kept secretverifiedMay 18, 2026
Skeleton KeynounMWEa passkey with much of the bit filed away so that it can open different locksverifiedMay 18, 2026
Skeleton ShrimpnounMWEsmall amphipod crustacean having a grotesque form suggestive of the praying mantisverifiedMay 18, 2026
Skene ArchnounMWEan arch whose height is less than half its widthverifiedMay 18, 2026
Sketch BlocknounMWEa book containing sheets of paper on which sketches can be drawnverifiedMay 18, 2026
Sketch MapnounMWEa map drawn from observation (rather than from exact measurements) and representing the main features of an areaverifiedMay 18, 2026
Sketch PadnounMWEa book containing sheets of paper on which sketches can be drawnverifiedMay 18, 2026
Skew ArchnounMWEan arch whose jambs are not at right angles with the faceverifiedMay 18, 2026
Skew CorrelationnounMWEany correlation in which the rates of change of the variables is not constantverifiedMay 18, 2026
Ski BindingnounMWEone of a pair of mechanical devices that are attached to a ski and that will grip a ski bootverifiedMay 18, 2026
Ski BootnounMWEa stiff boot that is fastened to a ski with a ski bindingverifiedMay 18, 2026
Ski CapnounMWEa close-fitting woolen capverifiedMay 18, 2026
Ski ConditionsnounMWEthe amount and state of snow for skiingverifiedMay 18, 2026
Ski JacketnounMWEa parka to be worn while skiingverifiedMay 18, 2026
ski jumpverbMWEjump on skisverifiedJun 3, 2026
Ski JumpnounMWEa steep downward ramp from which skiers jumpverifiedMay 18, 2026
Ski JumpernounMWEa skier who leaps through the air (especially on a ski jump)verifiedMay 18, 2026
Ski JumpingnounMWEthe act of performing a jump on skis from a high ramp overhanging a snow covered slopeverifiedMay 18, 2026
Ski LiftnounMWEa powered conveyance that carries skiers up a hillverifiedMay 18, 2026
Ski LodgenounMWEa hotel at a ski resortverifiedMay 18, 2026
Ski MasknounMWEa woolen face mask to protect the face from cold while skiing on snowverifiedMay 18, 2026
Ski ParkanounMWEa parka to be worn while skiingverifiedMay 18, 2026
Ski PolenounMWEa pole with metal points used as an aid in skiingverifiedMay 18, 2026
Ski RacenounMWEa race between people wearing skisverifiedMay 18, 2026
Ski RacknounMWEa carrier for holding skis on top of a vehicleverifiedMay 18, 2026
Ski ResortnounMWEa resort with lodging and facilities for skiingverifiedMay 18, 2026
Ski RunnounMWEtrail or slope prepared for skiingverifiedMay 18, 2026
Ski SlopenounMWEa snow-covered slope for skiingverifiedMay 18, 2026
Ski TownounMWEa powered conveyance that carries skiers up a hillverifiedMay 18, 2026
Ski TrailnounMWEtrail or slope prepared for skiingverifiedMay 18, 2026
Ski WaxnounMWEwax used on the bottom of skisverifiedMay 18, 2026
Skid LidnounMWEa crash helmetverifiedMay 18, 2026
Skid RoadnounMWEa road made of logs on which freshly cut timber can be hauledverifiedMay 18, 2026
Skid RownounMWEa city district frequented by vagrants and alcoholics and addictsverifiedMay 18, 2026