Of a dish, product, etc.: containing meat and therefore not allowed to be eaten with or immediately after a milk product; of or relating to such foodstuffs. Also of a person: that has recently eaten meat. Compare milchig , "pareve".
As a mass noun or in plural Foodstuffs that contain or derive from meat.
Late 19th century. In some forms from Yiddish fleyshik from fleysh + -ik.