- 1[transitive] suckle somebody/something (of a woman or female animal) to feed a baby or young animal with milk from the breast or udder a cow suckling her calves (old-fashioned) a mother suckling a baby
- 2[intransitive] (of a baby or young animal) to drink milk from its mother's breast or udder The young of some mammals continue to suckle for years.
NAmE//ˈsʌkl//Verb Forms present simple I / you / we / they suckle
he / she / it suckles
past simple suckled
-ing form suckling