Flat Bone Over a Leg Joint, Also Called Patella

This page is the CodyCross answer for the clue below from Fauna and Flora, Group 174, Puzzle 2 (Environmentalists).

Question is: Flat Bone Over a Leg Joint, Also Called Patella

and the answer is: KNEECAP

Word Meaning:

KNEECAP — (anatomy) The flat, roundish bone in the knee.

Definitions from Wiktionary.

Flat bone over a leg joint, also called patella — CodyCross Answer | CodyCross Solutions