calving

(intransitive) To give birth to a calf.
(intransitive) To assist in a cow’s giving birth to a calf.
(transitive) To give birth to (a calf).
(especially, figuratively, intransitive) To shed a large piece, e.g. an iceberg or a smaller block of ice (coming off an iceberg).
(especially, figuratively, intransitive) To break off.
(especially, figuratively, transitive) To shed (a large piece, e.g. an iceberg); to set loose (a mass of ice), e.g. a block of ice (coming off an iceberg).