Ovipositor

O′vi‐pos″i‐tor (?), n. [L. ovum an egg + positor a placer, fr. ponere to place.] (Zoöl.) The organ with which many insects and some other animals deposit their eggs. Some ichneumon files have a long ovipositor fitted to pierce the eggs or larvæ of other insects, in order to lay their own eggs within the same.