a bacterium of an order of typically non-motile filamentous forms. They include the economically important streptomycetes, and were formerly regarded as fungi 放射菌类
Order Actinomycetales; Gram-positive 放射菌目;革兰氏阳性菌
语源
1920s (originally only in the plural): modern Latin, from Greek aktis, aktin- 'ray' + mukētes, plural of mukēs 'fungus'