centrifuge centrifuge n. an apparatus having containers for liquids arrayed around a central pivot and rotated at a high speed, thus generating {centrifugal force} on the liquid, and separating substances (such as particles of solid or globules of an immiscible liquid) mixed together in suspension within the liquid. Suspensions which would settle only very slowly or not at all under gravity can be made to separate quickly in such a device.

Note: The containers for holding the liquid in a centrifuge are held in a metal frame called the head or trunnion. The solid material collected at teh bottom of the liquid container is called the pellet. A centrifuge designed to run at very high speeds and thus generate very high centrifugal force is called an {ultracentrifuge}.

Syn: extractor, separator. [WordNet 1.5 +PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • ultracentrifuge — [ul΄trə sen′trə fyo͞oj΄] n. a high speed centrifuge for segregating microscopic and submicroscopic materials to determine the sizes and molecular weights of colloidal and other small particles vt. ultracentrifuged, ultracentrifuging to subject to …   English World dictionary

  • Ultracentrifuge — The ultracentrifuge is a centrifuge optimized for spinning a rotor at very high speeds, capable of generating acceleration as high as 1,000,000 g (9,800 km/s²). There are two kinds of ultracentrifuges, the preparative and the analytical… …   Wikipedia

  • ultracentrifuge — A high speed centrifuge (up to 100,000 rpm) by means of which large molecules, e.g., of protein or nucleic acid s, are caused to sediment at practicable rates; used for determinations of molecular weights, separation of large molecules, criteria… …   Medical dictionary

  • ultracentrifuge — I. noun Date: 1924 a high speed centrifuge able to sediment colloidal and other small particles and used especially in determining sizes of such particles and molecular weights of large molecules II. transitive verb Date: 1934 to subject to an… …   New Collegiate Dictionary

  • ultracentrifuge — ultracentrifugal /ul treuh sen trif yeuh geuhl, euh geuhl/, adj. ultracentrifugally, adv. /ul treuh sen treuh fyoohj /, n., v., ultracentrifuged, ultracentrifuging. Physical Chem. n. 1. a high speed centrifuge for subjecting sols or solutions to… …   Universalium

  • ultracentrifuge — ul•tra•cen•tri•fuge [[t]ˌʌl trəˈsɛn trəˌfyudʒ[/t]] n. v. fuged, fug•ing 1) chem. lab a high speed centrifuge for subjecting sols or solutions to forces many times that of gravity and producing concentration differences depending on the weight of… …   From formal English to slang

  • ultracentrifuge — /ʌltrəˈsɛntrəfjudʒ/ (say ultruh sentruhfyoohj) noun 1. a high speed centrifuge capable of separating ultramicroscopic particles. –verb (t) (ultracentrifuged, ultracentrifuging) 2. to separate in an ultracentrifuge …   Australian English dictionary

  • ultracentrifuge — ultracentrifuga statusas T sritis chemija apibrėžtis Įrenginys, sukuriantis išcentrinę jėgą, daugiau kaip 3500 kartų viršijančią sunkio jėgą. atitikmenys: angl. supercentrifuge; ultracentrifuge rus. суперцентрифуга; ультрацентрифуга ryšiai:… …   Chemijos terminų aiškinamasis žodynas

  • ultracentrifuge — ultracentrifuga statusas T sritis fizika atitikmenys: angl. high speed centrifuge; supercentrifuge; ultracentrifuge vok. Ultrazentrifuge, f rus. ультрацентрифуга, f pranc. ultracentrifugeur, m; ultracentrifugeuse, f …   Fizikos terminų žodynas

  • ultracentrifuge — 1. noun A high speed centrifuge, especially one free from convection that is used to separate colloidal particles. 2. verb To submit a material to ultracentrifugation …   Wiktionary

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