The Collaborative International Dictionary of English v.0.48:
Chenopodium \Chenopodium\ n. a genus of plants comprising the goosefoots and including the pigweed. Syn: genus Chenopodium. [WordNet 1.5]WordNet (r) 3.0 (2006):
Chenopodium n 1: goosefoot; pigweed [syn: Chenopodium, genus Chenopodium]