Principal Axis

Definition: Principal Axis

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

Specialty Definition: Principal Axis

Domain	Definition
Mining	A. In the tetragonal and hexagonal systems, the vertical crystallographic axis; hence what is the same thing in uniaxial crystals, the optic axis. In the orthorhombic and triclinic crystals, the axis of the principal zone; the axis with the shortest period, often the axis of the principal zone. In monoclinic crystals, the axis c, usually the axis of the principal zone excluding the symmetry axis; the symmetry axis b c. In a transducer used for sound emission or reception, a reference direction for angular coordinates used in describing the directional characteristics of the transducer. It is usually an axis of structural symmetry or the direction of maximum response, but if these do not coincide, the reference direction must be described explicitly d. In experimental structural geology, a principal axis of stress or aprincipal axis of strain. (references)
Source: compiled by the editor from various references; see credits.

English words defined with "principal axis": Axis of a curve ♦ Latus rectum ♦ Pole of a lens ♦ Rhachis. (references)

Modern Translation: Principal Axis

Language		Translations for "principal axis"; alternative meanings/domain in parentheses.
German		Hauptachse (centerline, major axis). (various references)

Pig Latin		incipalpray axisay
Source: compiled by the editor from various translation references.

Anagrams: Principal Axis

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-a-c-i-i-i-l-n-p-p-r-s-x"
	-3 letters: principals.
	-4 letters: principal, principia.
	-5 letters: papricas, piscinal, principi, rappinis.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.