Attowatt

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An SI unit of power equal to 10⁻¹⁸ watts. Symbol: aW

Synonyms

All synonyms

Etymology

From atto- + watt.

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