[f. KNEE sb. + CAP.]
1. A cap or protective covering for the knee; spec., a genouillère.
1660. Survey Arm. Tower Lond., in Archæologia, XI. 98. Cushes, Knee capps.
1827. Scott, Jrnl., 23 Jan. I have got a piece of armour, a knee-cap of chamois leather.
1858. Simmonds, Dict. Trade, Knee-cap, a cover or protection for the knee of a stumbling horse.
1860. Fairholt, Costume Eng. (ed. 2), 128. Small plates of metal also begin to appear at the elbows and knees . The knee-caps were styled genouillères.
1884. Mil. Engineering (ed. 3), I. II. 72. 4 pairs of knee-caps.
1886. T. Hardy, Mayor Casterbr., iv. Thatchers knee-caps, ploughmans leggings.
b. (Surgical.) A water- or ice-bag for topical appliances to the knee.
1884. in Knight, Dict. Mech., Suppl.
2. The convex bone in front of the knee-joint; the patella, knee-pan.
1869. Huxley, Elem. Physiol. (ed. 3), 186. The ligament of the knee-cap, or patella.
1884. Bosanquet, trans. Lotzes Metaph., 506. If we touch any part of the skin that is stretched above a bone, whether it be the forehead, the knee-cap, or the heel, feelings are aroused which have a common tone.