Pl. -a. [mod.L. dim. of terebrum, collateral f. terebra: see prec.]
† 1. Surg. A trepan or trephine. ? Obs.
1678. Phillips (ed. 4), Terebellum, a Chyrurgions instrument.
1688. R. Holme, Armoury, III. 420/2. The Terebellum … an Instrument to take up broken or bruised Skulls.
2. Zool. Lamarck’s name for the genus Seraphs of bivalve mollusks.
1851. Woodward, Mollusca, 106. The animal of terebellum has an operculum like strombus.
