Stifle bone

a small bone at the stifle joint; the patella, or kneepan.

See also: Stifle

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
"I took her straight to Michael Galliard's at Nantwich and he told me she had smashed her upper tibia and stifle bone. He will be operating on her Saturday."