goniometer

[goh-nee-om-i-ter]
noun
an instrument for measuring solid angles, as of crystals.

Origin:
1760–70; gonio- + -meter

goniometric [goh-nee-uh-me-trik] , goniometrical, adjective
goniometrically, adverb
goniometry, noun
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World English Dictionary
goniometer (ˌɡəʊnɪˈɒmɪtə)
 
n
1.  an instrument for measuring the angles between the faces of a crystal
2.  an instrument consisting of a transformer circuit connected to two directional aerials, used to determine the bearing of a distant radio station
 
[C18: via French from Greek gōnia angle]
 
goniometric
 
adj
 
gonio'metrical
 
adj
 
gonio'metrically
 
adv
 
goni'ometry
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

goniometer go·ni·om·e·ter (gō'nē-ŏm'ĭ-tər)
n.

  1. An optical instrument for measuring crystal angles, as between crystal faces.

  2. See arthrometer.

The American Heritage® Stedman's Medical Dictionary
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Example sentences
The movable arm of the goniometer was placed over the body surface of the humerus toward the lateral epicondyle.
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