Principal Axis

nounverified·updated May 18, 2026

a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted

Framework senses

2 senses across 2 frameworks

Wordset Dictionary1 senseview framework →

§1: a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted

Legacy lexicon import1 senseview framework →

§1 · legacy_primary: a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted
DR-088 backfill from the noun definition column