Terebra is a genus of small to large-sized predatory sea snails, marine gastropod mollusks in the family Terebridae, the auger snails. Species in this genus do not possess a radula. Species within the genus Terebra include: Species in the genus Terebra include: ...
• (n.) A genus of marine gastropods having a long, tapering spire. They belong to the Toxoglossa. Called also auger shell. • (n.) The boring ovipositor of a hymenopterous insect.
Siege machine for drilling holes in walls.
Functional unit of hymenopteran ovipositor, formed from first and second valvulae.A siege machine for drilling holes in walls. 
Ter'e·bra noun ; plural English Terebras , Latin Terebræ . [ Latin , a borer.] 1. (Zoology) A genus of marine gastropods having a long, tapering spire. They belong to the Toxoglossa. Called also auger shell . 2. (Zoology) The boring o...