The Collaborative International Dictionary of English v.0.48:
Luz \Luz\ (l[u^]z), n.
A bone of the human body which was supposed by certain
Rabbinical writers to be indestructible. Its location was a
matter of dispute. --Brande & C.
Easton's 1897 Bible Dictionary:
a nut-bearing tree, the almond. (1.) The ancient name of a royal
Canaanitish city near the site of Bethel (Gen. 28:19; 35:6), on
the border of Benjamin (Josh. 18:13). Here Jacob halted, and had
a prophetic vision. (See BETHEL.)
(2.) A place in the land of the Hittites, founded (Judg. 1:26)
by "a man who came forth out of the city of Luz." It is
identified with Luweiziyeh, 4 miles north-west of Banias.