The Collaborative International Dictionary of English v.0.48:
actinomycetous \actinomycetous\ adj. 1. of or pertaining to actinomycetes. Syn: actinomycetal [WordNet 1.5]WordNet (r) 3.0 (2006):
actinomycetous adj 1: of or belonging to the actinomycetes [syn: actinomycetal, actinomycetous]