1. A group of filamentous bacteria that resemble fungi and are commonly found in soil; some species cause disease in humans and animals.
Usage: plural form; singular is actinomycete; technical/scientific term; used in microbiology and medicine

Examples

• Actinomycetes are important decomposers in soil ecosystems.
• The antibiotic streptomycin is produced by certain actinomycetes.
• Actinomycosis, a serious infection, is caused by actinomycetes in the human body.
• Farmers often encounter actinomycetes when studying soil microorganisms.
• Many actinomycetes produce compounds with medicinal properties.
• The earthy smell of soil after rain is partly due to actinomycetes releasing geosmin.