Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A solid having five plane faces.
from The Century Dictionary.
- noun A solid figure having five faces.
from the GNU version of the Collaborative International Dictionary of English.
- noun A solid figure having five sides.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
solid geometric figure with fivefaces .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun any polyhedron having five plane faces
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
penta- + -hedron
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Examples
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Yes, he thought to himself as his eyes scanned the fascinating complex of structures, aver there is a dodecahedron, there a pentahedron ...
Rama Revisited Clarke, Arthur C. 1989
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In turn it was a sphere, a disk, a pyramid, a pentahedron, a polyhedron.
"Where Angels Fear to Tread" and Other Stories of the Sea Morgan Robertson 1888
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“universe”, “prime number”; of the second kind are ideas like “nothing”, “round square”, “regular pentahedron”, “golden mountain” (empirically empty), logical particles such as
Bolzano's Logic Sebestik, Jan 2007
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