Femtobel

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An SI unit of relative power equal to 10⁻¹⁵ bels. Symbol: f

Synonyms

All synonyms

Etymology

From femto- + bel.

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