noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   A Roman surveying instrument having plumb lines hanging from four arms at right angles.

Etymology

Learned borrowing from Latin grōma, from Ancient Greek γνώμη (gnṓmē)

Related phrases

plumb lineright angle

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