The Collaborative International Dictionary
Ventro-
Ventro- \Ven"tro-\ [L. venter belly.] A combining form used in anatomy to indicate connection with, or relation to, the abdomen; also, connection with, relation to, or direction toward, the ventral side; as, ventrolateral; ventro-inguinal.
Wiktionary
ventro-
pre. (alternative form of ventri- English)