The Collaborative International Dictionary of English v.0.48:
Autoecious \Au*t[oe]"cious\, a. [Auto- + Gr. ? house.] (Biol.) Passing through all its stages on one host, as certain parasitic fungi; -- contrasted with heter[oe]cious. [Webster 1913 Suppl.]WordNet (r) 3.0 (2006):
autoecious adj 1: of parasites especially rust fungi; completing the entire life cycle on a single host; "autoecious rust fungi" [syn: autoecious, homoecious] [ant: heteroecious]