Pronunciation: (fid), [key]
1. a stout bar of wood or metal placed across a lower spar so as to support a higher one.
2. a stout bar used to hold a running bowsprit in its extended position.
3. a wooden or metal pin for parting strands of a rope.
4. a bar or pin used as a key or toggle.
a combining form meaning “divided,” “lobed,” occurring in adjectives borrowed from Latin (bifid); on this model, used in the formation of compound words (pinnatifid).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.