genus Isoetes ge·nu·si·soetes uncommon noun 1. type and genus of the Isoetaceae and sole extant genus of the order Isoetales SynonymsIsoetesgenus Isoetes Related words Broader terms fern genus Parts Isoetaceae Part of quillwort WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
