Pronunciation: (bī'op-sē), [key]
—n., pl. -sies,
—v., -sied, -sy•ing. Med.
1. the removal for diagnostic study of a piece of tissue from a living body.
2. a specimen obtained from a biopsy.
to remove (living tissue) for diagnostic evaluation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.