This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A minute life form; a microorganism, especially a bacterium that causes disease. Not in technical use.

n. Any microorganism, but specially said of those microorganisms which are harmful types of bacteria.

n. A microscopic organism; a microorganism; -- particularly applied to bacteria and especially to pathogenic forms.

n. A minute living being not distinguished, primarily, as to its animal or vegetable nature.

n. a minute life form (especially a disease-causing bacterium); the term is not in technical use

"[Footnote: The term microbe is simply a word which has been coined to include all of the microscopic plants commonly included under the terms bacteria and yeasts.] has developed with a marvellous rapidity."

microbion   

microorganism   

microorganism   

microorganism    germ    bacterium    microphyte    microzyme   

microorganisms    bacteria    bacilli    bacterium    germ    microorganism    virus    fungus    toxin    protozoa