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labrum
Part of speech: NounIn ent., the mouth- cover or lip- like shield of an insect's mouth; the outer lip of a shell.
Usage examples "labrum":- Illustration 22 Insects 5. Antennae very long, arising from between the eyes, labrum heart- shaped, eyes very large, prominent; ocelli 3, the first the largest, situated between the antennae, the two others being placed on the sides of a slight groove behind them. - "Journals Of Two Expeditions Of Discovery In North-West And Western Australia, Vol. 2 (of 2)", George Grey.
- The labrum forms a segment of a circle; it is reddish, edged with a small number of very short, stiff hairs. - "The Glow-Worm and Other Beetles", Jean Henri Fabre.
- The labrum is prominent, is not distinctly divided from the head, is curved in front and edged with pale and very fine bristles. - "The Glow-Worm and Other Beetles", Jean Henri Fabre.