n.
Pronunciation: ' l ā -br ə m
Function: noun
Etymology: New Latin, from Latin, lip, edge ― more at LIP
Date: 1826
1 : an upper or anterior mouthpart of an arthropod consisting of a single median piece in front of or above the mandibles
2 : a ring of fibrous cartilage forming the margin of the shallow cavity of the upper part of the scapula by which the humerus articulates with the pectoral girdle