Lepto-

prefix

prefix ·Rare ·Advanced level

Definitions

Prefix
  1. 1
    thin, fine, narrow, slender morpheme
  2. 2
    lepton morpheme

Etymology

Borrowed from Ancient Greek λεπτός (leptós, “thin”).

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