英语词源字典 - 在线词源网站

sustentaculum [sustentaculum 词源字典]: "A supporting part or structure; especially the sustentaculum tali; Zoology a short spine present on each tarsus of the fourth pair of legs in many orb-weaving spiders (family Araneidae)", Mid 18th cent.; earliest use found in The Gentleman's Magazine. From post-classical Latin sustentaculum nourishment, food, crutch, prop from classical Latin sustentāre + -culum.[sustentaculum etymology, sustentaculum origin, 英语词源]
sustentative: "Having the quality or purpose of sustaining something; providing sustenance or support; relating to sustentation", Early 17th cent.; earliest use found in Thomas Jackson. From post-classical Latin sustentativus from classical Latin sustentāt-, past participial stem of sustentāre + -īvus.
superabound: "Be very or too abundant", Late Middle English (in the sense 'be more abundant'): from late Latin superabundare (see super-, abound).
sudd: "An area of floating vegetation in a stretch of the White Nile, thick enough to impede navigation", Arabic, literally 'obstruction'.
supereminent: "Old-fashioned term for pre-eminent", Mid 16th century: from Latin supereminent- 'rising above', from the verb supereminere 'rise above' (see super-, eminent).
secretin: "A hormone released into the bloodstream by the duodenum (especially in response to acidity) to stimulate secretion by the liver and pancreas", Early 20th century: from secretion + -in¹.
steen: "A variety of white grape grown in South Africa", South African Dutch, elliptically from steendruiven, literally 'stone grapes'.
stridulate: "(Of an insect, especially a male cricket or grasshopper) make a shrill sound by rubbing the legs, wings, or other parts of the body together", Mid 19th century: from French striduler, from Latin stridulus 'creaking', from the verb stridere.
scleroid: "Having a hard or hardened texture", Mid 19th century: from Greek sklēros 'hard'.
sublate: "Assimilate (a smaller entity) into a larger one", Mid 16th century (in the sense 'to remove, take away'): from Latin sublat- 'taken away', from sub- 'from below' + lat- (from the stem of tollere 'take away').
sulphate: "A salt or ester of sulphuric acid, containing the anion SO4²⁻ or the divalent group —OSO2O—", Late 18th century: from French sulfate, from Latin sulphur (see sulphur).
sanitarian: "An official responsible for public health or a person in favour of public health reform", Mid 19th century: from sanitary + -ian.
syllabary: "A set of written characters representing syllables and (in some languages or stages of writing) serving the purpose of an alphabet", Mid 19th century: from modern Latin syllabarium, from Latin syllaba (see syllable).
summa: "A summary of a subject", Early 18th century: from Latin, literally 'sum total' (a sense reflected in Middle English).
subarid: "Somewhat arid, moderately dry; having some features of an arid climate. Also (of a region): adjacent to or on the borders of an arid region", Late 19th cent.; earliest use found in American Journal of Science. From sub- + arid.
scutage: "(In a feudal society) money paid by a vassal to his lord in lieu of military service", Late Middle English: from medieval Latin scutagium, from Latin scutum 'shield'.
subequal: " Zoology and Botany . Nearly, but not exactly, equal in size", Mid 18th cent.; earliest use found in New & Complete Dictionary Arts & Science. From sub- + equal, after post-classical Latin subaequalis.
sciagraphy: "The use of shading and the projection of shadows to show perspective in architectural or technical drawing", Late 16th century: from French sciagraphie, via Latin from Greek skiagraphia, from skia 'shadow'.
sal ammoniac: "Old-fashioned term for ammonium chloride", Middle English: from Latin sal ammoniacus 'salt of Ammon' (see ammoniacal).
subsolar: "Earthly, terrestrial (often in contrast to heavenly)", Mid 17th cent. From sub- + solar, originally after post-classical Latin subsolaris earthly, exposed to the sun. Compare subsolary.