kneecap

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pa·tel·la

, gen. and pl.

pa·tel·lae

(pa-tel'ă, -ē), [TA]
The large sesamoid bone, in the combined tendon of the quadriceps femoris, covering the anterior surface of the knee.
Synonym(s): kneecap
[L. a small plate, the kneecap, dim. of patina, a shallow disk, fr. pateo, to lie open]

kneecap

(nē′kăp′)
n.
1. See patella.
2. See kneepad.
tr.v. knee·capped, knee·capping, knee·caps
To cripple by shooting in the legs, especially in the knees.

pa·tel·la

, pl. patellae (pă-tel'ă, -ē) [TA]
The large sesamoid bone that covers the anterior surface of the knee. It is formed in the tendon of the quadriceps femoris muscle and is attached to the tibia by the patellar tendon.
Synonym(s): kneecap.
[L. a small plate, the kneecap, dim. of patina, a shallow disk, fr. pateo, to lie open]