noun
type genus of the Psilophytaceae: genus of small wiry herbaceous Paleozoic plants with underground rhizomes and apical sporangia
• Hypernyms: ↑fern genus
• Member Holonyms: ↑Psilophytaceae, ↑family Psilophytaceae
• Member Meronyms: ↑psilophyton
Useful english dictionary. 2012.