1. the process of a cat giving birth to kittens

1. giving birth to kittens (present participle of kitten)

Examples

• The veterinarian explained that kittening usually takes several hours.
• Our cat is kittening in the closet upstairs.
• She prepared a quiet box for the kittening process.
• The mother cat was kittening when we found her.
• After kittening, the cat needs extra nutrition and care.
• We called the vet because the kittening seemed difficult.