LACTATION /lækˈteɪʃən/ Scrabble 11 Words With Friends 14 Definition noun the period following birth during which milk is secreted. noun the production and secretion of milk by the mammary glands. noun feeding an infant by giving suck at the breast. — synonyms: suckling See all 172 words you can make from LACTATION → 9-letter words Words starting with L Words ending with N ← Unscramble different letters