ac·tin·o·my·co·sis 
(ăk-tĭn′ō-mī-kōsĭs, ăk′tə-nō-)
(ăk-tĭn′ō-mī-kōsĭs, ăk′tə-nō-)n.
An inflammatory disease of cattle, hogs, humans, and other mammals, caused by actinomyces and characterized by lumpy tumors of the mouth, neck, chest, and abdomen. Also called lumpy jaw.
ac·tin′o·my·cotic (-kŏtĭk) adj.