Moonmilk

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A white, creamy limestone precipitate found in caves. uncountable
  2. 2
    Alternative form of moon milk (“flavoured warm milk”). alt-of, alternative, uncountable

Etymology

From moon + milk, based on its appearance and the prescientific belief that it originated from the moon. Compare German Mondmilch, Latin lac lunae.

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