noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   0.000001 grams, as a unit of mass. nonstandard, rare

Synonyms

All synonyms

microgrammicrogramµgμg

Etymology

From millimilli- + gram / milli- + milligram.

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