Lactation is the process of milk production in female mammals.

The lacteal vessels in the small intestine absorb dietary fats.

Lactic acid is produced by bacteria in milk.

Lactic acid is produced by the fermentation of lactose.

I am lactose intolerant.

The book had a lacuna in the middle of the story.

She wore a beautiful lacy dress to the party.

There is a lack of evidence to support the claim.

For lack of a better term , I would say he's a bit eccentric.

I lack the motivation to study for the exam.