ul•tra•cen•tri•fuge
Pronunciation: (ul"tru-sen'tru-fyj"), [key] — n., v., -fuged, -fug•ing.
—n. - 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 the micelle or molecule.
—v.t. - to subject to the action of an ultracentrifuge.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.