An instrument used to measure angles or to set objects to a desired angle. Examples include optical instruments used in surveying or for measuring crystal angles (as between crystal faces), and radio receivers and directional antennae used to determine the angular direction of incoming radio signals.
[Greek gōniā, angle; see genu-1 in the Appendix of Indo-European roots + -METER.]
go′ni·o·metric (-nē-ə-mĕtrĭk), go′ni·o·metri·cal adj.
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Indo-European & Semitic Roots Appendices
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