Coccoid means shaped like or resembling a coccus, that is, spherical.The noun coccoid or coccoids may refer to: a level of organization, characterized by unicellular, non-flagellated, non-amoeboid organisms, with a definite shape, in general but not always ovoid. It is found in many groups, e.g.: some bacteria, also called cocci (pl. of coccus) some green algae, like the desmids and the former Chlorococcales (now in several orders within the division Chlorophyta) some dinoflagellates, notably Symbiodinium some chrysophytes some xanthophytes the diatoms the superfamily Coccoidea of scale insects the Coccidae family within the Coccoidea See also Coccolite, a form of the mineral diopside Coccolithophore, a class of phytoplankton (alga) Coccolith, a platelet formed by coccolithophore, found in chalk