'Porta' definitions:

Definition of 'porta'

From: WordNet
noun
An aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart" [syn: orifice, opening, porta]

Definition of 'Porta'

From: GCIDE
  • Porta \Por"ta\, n.; pl. Port[ae]. [L., a gate. See Port a hole.] (Anat.) (a) The part of the liver or other organ where its vessels and nerves enter; the hilus. (b) The foramen of Monro. --B. G. Wilder. [1913 Webster]