n. Protoplasm of protozoans in sheets, masses, or comparatively large quantities, as formed by the plasmodiate members of the Protozoa.n. A definite quantity of Plasmodium, or the Plasmodium of given individual organisms.n. The naked multinucleated mass of protoplasm, exhibiting amœboid movement, which makes up the entire plant-body of the slime-molds (Myxomycetes) during the vegetative period of their existence. See Myxomycetes, slime-mold, Fuligo, 2, and Olpidium