go·ni·om·e·ter

(gō′nē-ŏm′ĭ-tər)

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

2. A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals.

[Greek gōniā, angle; see genu- in Indo-European roots + -meter.]

go′ni·o·met′ric (-nē-ə-mĕt′rĭk), go′ni·o·met′ri·cal adj.

go′ni·om′e·try n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

goniometer

(ˌɡəʊnɪˈɒmɪtə)

1. (General Physics) an instrument for measuring the angles between the faces of a crystal

2. (Electronics) 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, ˌgonioˈmetrical adj

ˌgonioˈmetrically adv

ˌgoniˈometry n

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

go•ni•om•e•ter

(ˌgoʊ niˈɒm ɪ tər)

n.

an instrument for measuring solid angles, as of crystals.

[1760–70; < Greek gōní(a) angle (compare -gon) + -o- + -meter]

go`ni•o•met′ric (-əˈmɛ trɪk) go`ni•o•met′ri•cal, adj.

go`ni•o•met′ri•cal•ly, adv.

go`ni•om′e•try, n.

goniometer

an instrument for measuring angles, especially those of solid bodies.