prothallus

noun pro·thal·lus \(ˌ)prō-ˈtha-ləs\

Definition of PROTHALLUS

: the gametophyte of a pteridophyte (as a fern) that is typically a small flat green thallus attached to the soil by rhizoids

: a greatly reduced structure of a seed plant corresponding to the pteridophyte prothallus

New Latin

First Known Use: 1854

Next Word in the Dictionary: prothanic (adjective)Previous Word in the Dictionary: prothalloidAll Words Near: prothallus

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