noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A polypeptide placental hormone, part of the somatotropin family, with structure and function similar to those of growth hormone. It modifies the metabolic state of the mother during pregnancy to facilitate the energy supply of the fetus. countable, uncountable
2. 2
   any agent that enhances milk production wordnet

Etymology

From lacto- + -gen.

Related phrases

growth hormone

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.