sascommon nouncommon nounproper nounproper nounSyllable DecompositionsasEtymologyexpand(1380) from Old French saaz (12th century). From Late Latin setacium (sieve) of medieval times, derived from classical Latin saeta ("pig bristle, hair").Definitions1. Fabric more or less tight of horsehair, silk, etc., mounted on a wooden hoop and used to sift flour, plaster, liquids, etc., sieve, strainer.flags.vieilliexpandGros sas, sas délié.Plâtre au sas, Plâtre passé au sas ou au tamis.2. Kind of wicker screen for sifting soil to remove stones.rareexpandTranslationsspanish:cedazoitalian:setaccioSee alsosasseur (cn.) sas (cn.) sasser (v.) sassement (cn.)