The Collaborative International Dictionary of English v.0.48:
archegoniate \archegoniate\ archegonical \archegonical\adj. 1. of or pertaining to an archegonium. Syn: archegonial [WordNet 1.5] 2. bearing archegonia. Syn: archegonial [PJC]WordNet (r) 3.0 (2006):
archegoniate adj 1: of or relating to an archegonium [syn: archegonial, archegoniate]