principal axis

prin·ci·pal ax·is

P p

Definitions of principal axis words

noun principal axis Optics. a line passing through the center of the surface of a lens or spherical mirror and through the centers of curvature of all segments of the lens or mirror. 1
noun principal axis Physics. one of three mutually perpendicular axes of a body about which the moment of inertia is maximum or minimum. 1
noun principal axis the line passing through the optical centre and centres of curvature of the faces of a lens or a curved mirror 0
noun principal axis any of three mutually perpendicular axes about which the moment of inertia of a body is maximum 0

before 1875

One of the 25% newest English words

First recorded in 1875-80

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 5% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

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