Hand goniometer

Hand goniometer
Goniometer Go`ni*om"e*ter, n. [Gr. ? angle + -meter: cf. F. goniom[`e]tre.] An instrument for measuring angles, especially the angles of crystals, or the inclination of planes. [1913 Webster]

{Contact goniometer}, or {Hand goniometer}, a goniometer having two movable arms (ab, cd), between which (at ab) the faces of the crystals are placed. These arms turn about a fixed point, which is the center of the graduated circle or semicircle upon which the angle is read off.

{Reflecting goniometer}, an instrument for measuring the angles of crystals by determining through what angular space the crystal must be turned so that two rays reflected from two surfaces successively shall have the same direction; -- called also {Wollaston's goniometer}, from the inventor.


The Collaborative International Dictionary of English. 2000.

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  • Goniometer — Go ni*om e*ter, n. [Gr. ? angle + meter: cf. F. goniom[ e]tre.] An instrument for measuring angles, especially the angles of crystals, or the inclination of planes. [1913 Webster] {Contact goniometer}, or {Hand goniometer}, a goniometer having… …   The Collaborative International Dictionary of English

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  • Contact goniometer — Goniometer Go ni*om e*ter, n. [Gr. ? angle + meter: cf. F. goniom[ e]tre.] An instrument for measuring angles, especially the angles of crystals, or the inclination of planes. [1913 Webster] {Contact goniometer}, or {Hand goniometer}, a… …   The Collaborative International Dictionary of English

  • Reflecting goniometer — Goniometer Go ni*om e*ter, n. [Gr. ? angle + meter: cf. F. goniom[ e]tre.] An instrument for measuring angles, especially the angles of crystals, or the inclination of planes. [1913 Webster] {Contact goniometer}, or {Hand goniometer}, a… …   The Collaborative International Dictionary of English

  • Wollaston's goniometer — Goniometer Go ni*om e*ter, n. [Gr. ? angle + meter: cf. F. goniom[ e]tre.] An instrument for measuring angles, especially the angles of crystals, or the inclination of planes. [1913 Webster] {Contact goniometer}, or {Hand goniometer}, a… …   The Collaborative International Dictionary of English

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