Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A figure formed by three planes meeting at a point.
from The Century Dictionary.
- noun In geometry, a figure having three faces or sides.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Geom.) A figure having three sides.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mathematics A geometric
figure composed of threeplanes meeting at a singlevertex .
Etymologies
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Examples
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[(On September 8, he writes: --] "I have been laughing over my 'trihedron.'
Life and Letters of Thomas Henry Huxley — Volume 2 Thomas Henry Huxley 1860
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