Protoorganism
Pronunciation : Pro`to*?r"gan*ism
Part of Speech : n.
Etymology : [Proto- + organism.] (Biol.)
Definition : Defn: An organism whose nature is so difficult to determine that it might be referred to either the animal or the vegetable kingdom.
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