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Lancet

1. A surgical instrument of various forms, commonly sharp-pointed and two-edged, used in venesection, and in opening abscesses, etc.

2. (Science: chemistry) An iron bar used for tapping a melting furnace. Lancet arch a large, voracious, deep-sea fish (Alepidosaurus ferox), having long, sharp, lancetlike teeth. The doctor, or surgeon fish.

Origin: f. Lancette, dim. Of lance lance. See lance.