The Collaborative International Dictionary of English v.0.48:
myxomycete \myxomycete\ n. 1. (Biol.) an organism of the class Myxomycetes. Syn: true slime mold, acellular slime mold, plasmodial slime mold. [WordNet 1.5]WordNet (r) 3.0 (2006):
myxomycete n 1: a slime mold of the class Myxomycetes [syn: true slime mold, acellular slime mold, plasmodial slime mold, myxomycete]