from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A lip or liplike structure, such as the one forming the roof of the mouth in insects.
- n. The outer margin of the opening of a gastropod shell.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The uppermost of the mouthparts (trophi) of a typical insect, such as a cockroach. Typically resembles an upper lip and forms part of the roof of the mouth in such insects.
- n. Any of several lip-like projections.
- n. A large basin of warm water, with an overhanging lip, in a Roman bath.
from the GNU version of the Collaborative International Dictionary of English
- n. A lip or edge, as of a basin.
- n. An organ in insects and crustaceans covering the upper part of the mouth, and serving as an upper lip. See Illust. of Hymenoptera.
- n. The external margin of the aperture of a shell. See Univalve.
from The Century Dictionary and Cyclopedia
- n. In zoöl, alip or lip-like part. Specifically
- n. In Rom. archæol., a bath-tub, especially one of those of hard, fine material more or loss richly sculptured, rather common in the museums of Italy. Also called lavabrum.
Latin, lip; see leb- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin labrum ("lip"). (Wiktionary)
From Latin lābrum ("bathing tub"). (Wiktionary)