morphotype

morphotype

 [mor´fo-tīp] a group of bacterial strains within a single species that are distinguishable from other such strains because of morphological characteristics that may or may not indicate differing serological states.

mor·pho·type

(mōr'fō-tīp), An infrasubspecific group of bacterial strains distinguishable from other strains of the same species on the basis of morphologic characters that may or may not be associated with a change in serologic state. [morpho- + G. typos, stamp, model]