Cyathea cyat·hea uncommon noun 1. type genus of the Cyatheaceae: tree ferns of the tropical rain forest to temperate woodlands Synonymsgenus Cyathea Related words Word family CyatheaceaeCyathea medullaris Broader terms fern genus Parts Cyatheaceae Part of silver tree fern WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
