vent dudkaš (#) Fr.: cheminée The subterranean conduit from the underlying → magma chamber through which a volcano ejects igneous material. Same as volcanic vent. M.E. venten "to furnish (a vessel) with a vent," from O.Fr. esventer "to air," from es-, → ex-, + venter, from vent, from L. ventus "wind." Dudkaš "chimney," literally "smoke extractor," from dud, → smoke, + kaš "to extract, to draw," present stem of kešidan/kašidan "to carry, draw, protract, trail, drag" (Mid.Pers. kešidan "to draw, pull;" Av. karš- "to draw; to plow," karša- "furrow;" cf. Skt. kars-, kársati "to pull, drag, plow;" Gk. pelo, pelomai "to move, to bustle;" PIE base kwels- "to plow"). |
Venturi tube lule-ye Venturi Fr.: débitmètre de Venturi, tube de ~ A → device used to → measure the → quantity of → fluid → flowing through a → pipe. Named after Italian physicist Giovanni Battista Venturi (1746-1822); → tube |
volcanic vent dudkaš-e âtašfešâni (#) Fr.: cheminée volcanique → vent. |