The Collaborative International Dictionary of English v.0.48:
Athiorhodaceae \Athiorhodaceae\ n. 1. 1 a family of small motile sulphur bacteria. Syn: family Athiorhodaceae. [WordNet 1.5]WordNet (r) 3.0 (2006):
Athiorhodaceae n 1: small motile sulphur bacteria [syn: Athiorhodaceae, family Athiorhodaceae]