Actinomycetaceae dangin kwayoyin cuta ne na Gram-positive wanda galibi ana samun su a cikin ƙasa da muhallin ruwa. Waɗannan ƙwayoyin cuta an san su da yanayin girma na filamentous da ikon su na samar da maganin rigakafi da sauran mahaɗan bioactive. Sunan "Actinomycetaceae" ya fito ne daga kalmomin Helenanci "aktis," ma'ana ray, da "mykes," ma'ana naman gwari, yana nuna rassa, filamentous ilimin halittar jiki na waɗannan kwayoyin.