acidophilus
ac·i·doph·i·lus
noun \ˌas-ə-ˌdäf-(ə-)ləs\Definition of ACIDOPHILUS
: a lactobacillus (Lactobacillus acidophilus) that is added especially to dairy products (as yogurt and milk) or prepared as a dietary supplement, is part of the normal intestinal and vaginal flora, and is used therapeutically especially to promote intestinal health; also : a preparation containing such bacteria
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