Any microscopic organism, esp. one of the bacteria, that can cause disease
Any of various other spiral-shaped bacteria, especially one formerly classified in this genus.
A disease caused by a virus.
An organism, such as a bacterium, requiring free oxygen to live.
(Cytology) Any of the diverse group of eukaryotes, of the phylum Protozoa, that are primarily unicellular, existing singly or aggregating into colonies, are usually nonphotosynthetic, and are often classified further into phyla according to their capacity for and means of motility, as by pseudopods, flagella, or cilia.
Find another word for microorganism. In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for microorganism, like: germ, microbe, bacillus, bacterium, spirillum, virus, bug, micro-organism, aerobe, protozoan and beings.