Prothallium
Pronunciation : Pro*thal"li*um
Part of Speech : n.;
Etymology : [NL.] (Bot.)
Definition : Defn: Same as Prothallus.
pl. Prothallia.
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