pro‧bi‧ot‧ic /ˌprəʊbaɪˈɒtɪk◂ $ ˌproʊbaɪˈɑː-/ noun [uncountable and countable]
a food or other substance that contains bacteria and is used in a positive way to improve health, or the use of this type of food to improve health:
Probiotics have been reported to enhance digestion.
probiotic yoghurt

[TahlilGaran] Dictionary of Contemporary English ▲