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monad

/ˈmɒnæd/ noun

Latin root: monas Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about monad at Wordnik → Where our words come from →

  1. (chemistry) an atom having a valence of one.
  2. A singular metaphysical entity from which material properties are said to derive.
  3. (biology) a single-celled microorganism (especially a flagellate protozoan).

Origin

From Latin monas (“unit”) (from Ancient Greek μονάς (monás), from μόνος (mónos), from Proto-Indo-European *men-). By surface analysis, mono- + -ad.

From Wiktionary, via Kaikki.org (CC BY-SA)