Protoplast :: Protoplast (n.) The thing first formed; that of which there are subsequent copies or reproductions; the original.
Protoplast :: Protoplast (n.) A first-formed organized body; the first individual, or pair of individuals, of a species..
Protoplasta :: Protoplasta (n. pl.) A division of fresh-water rhizopods including those that have a soft body and delicate branched pseudopodia. The genus Gromia is one of the best-known.