intromittent

1. (biology) Conveying, sending or passing into a body.Examples: "And, in the end, there must be a way for the developed young to leave the maternal nidus, and the intromittent canal may answer this purpose or, by chance, it may not."; "1990, Raymond R. Forster, Norman I. Platnick, Jonathan A. Coddington, A Proposal and Review of the Spider Family Synotaxidae (Araneae, Araneoidea), American Museum of Natural History, page 39, Epigynum well developed, often with prominent paired lobes; internal female genitalia consisting of two widely separated pairs of receptacula with short intromittent ducts; […] ."; "In Microbrachius males, the paired intromittent structures occur ventromedially behind the posterior ventral lateral plates (Long et al., 2015: Fig. 1)."