- prolactinA peptide gonadotrophic hormone secreted by the pituitary gland; it stimulates growth of the mammary glands and lactation in females.
- lactificProducing or yielding milk.
- lactifugeA medicine to check the secretion of milk, or to dispel a supposed accumulation of milk in any part of the body
- lacto-milk.
- lactobutyrometerAn instrument for determining the amount of butterfat in milk.