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Definition of Onychium
1. Noun. Small terrestrial ferns of Old World tropics and subtropics: clawed ferns; sometimes placed in family Cryptogrammataceae.
Exact synonyms: Genus Onychium
Generic synonyms: Fern Genus
Group relationships: Family Pteridaceae, Pteridaceae
Generic synonyms: Fern Genus
Group relationships: Family Pteridaceae, Pteridaceae
Definition of Onychium
1. a pad on an insect's foot [n -S]