Moonmoon

//ˈmuːnmuːn// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A moon that orbits a larger moon. Internet

    "Sarah Laskow at Atlas Obscura explains that moonmoon is catching on because there’s something pleasing about “recursive places,” like islands within islands, volcanoes within volcanoes and rivers running through a sea."

Example

More examples

"Sarah Laskow at Atlas Obscura explains that moonmoon is catching on because there’s something pleasing about “recursive places,” like islands within islands, volcanoes within volcanoes and rivers running through a sea."

Etymology

moon + moon

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