Dictionary
in•cus
Pronunciation: (ing'kus), [key]—
n.,
—pl. in•cu•desPronunciation: (in-kyOO'dēz) [key] for 1; in•cus for 2.
1. Anat.the middle one of a chain of three small bones in the middle ear of humans and other mammals. Cf.
malleus, stapes. See diag. under
ear.
2. Also called
anvil, anvil cloud, anvil top, thunderhead. the spreading, anvil-shaped, upper portion of a mature cumulonimbus cloud, smooth or slightly fibrous in appearance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.