| Microspore (n.) One of the exceedingly minute spores found in certain flowerless plants, as Selaginella and Isoetes, which bear two kinds of spores, one very much smaller than the other. Cf. Macrospore. Thesaurus Entries Euglena, adenovirus, aerobe, aerobic bacteria, amoeba, anaerobe, anaerobic bacteria, animalcule, bacillus, bacteria, bacterium, bug, coccus, colon bacillus, diatom, disease-producing microorganism, dyad, echovirus, enterovirus, filterable virus, flagellate, fungus, germ, gram-negative bacteria, gram-positive bacteria, microbe, microorganism, microspore, microzoa, mold, monad, nematode, nonfilterable virus, paramecium, pathogen, picornavirus, protozoa, protozoon, reovirus, rhinovirus, rickettsia, salmonella, saprophyte, spirillum, spirochete, spore, sporozoon, staphylococcus, streptococcus, tetrad, triad, trypanosome, vibrio, virus, volvox, vorticellum, zoospore |