PRINCIPAL AXIS

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does principal axis mean? 

• PRINCIPAL AXIS (noun)
  The noun PRINCIPAL AXIS has 1 sense:

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

  Familiarity information: PRINCIPAL AXIS used as a noun is very rare.

 Dictionary entry details 

• PRINCIPAL AXIS (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting cognitive processes and contents

Synonyms:

optic axis; principal axis

Context example:

in a normal eye the optic axis is the direction in which objects are seen most distinctly

Hypernyms ("principal axis" is a kind of...):

axis (a straight line through a body or figure that satisfies certain conditions)