kneepan [
'ni:pæn]
n. 膝盖骨
kneepan[ noun ]
a small flat triangular bone in front of the knee that protects the knee joint
<noun.body>
Kneepan \Knee"pan`\, n. (Anat.)
A roundish, flattened, sesamoid bone in the tendon in front
of the knee joint; the patella; the kneecap.