Loin, n.

n. [O. Fr. logne, N. Fr. longe, Sp. lonja, from Lat. lumbus, loin; hence, W. llwyn, Ir. lúan. Cf. LEND.]

1. That part of an animal just above the hip-bone, on either side of the spinal column, extending upward to the false ribs; the lateral portions of the lumbar region.
2. (pl.) A corresponding part of the human body; —called also the reins.