Megaphyton
Pronunciation : Me*gaph"y*ton
Part of Speech : n.
Etymology : [NL., from Gr. me`gas great + fyto`n plant.] (Paleon.)
Definition : Defn: An extinct genus of tree ferns with large, two-ranked leaves, or fronds.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder