Definition of "pentahedron" []

• A solid having five plane faces. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Yes, he thought to himself as his eyes scanned the fascinating complex of structures, aver there is a dodecahedron, there a pentahedron ..."
• "In turn it was a sphere, a disk, a pyramid, a pentahedron, a polyhedron."
• "“universe”, “prime number”; of the second kind are ideas like “nothing”, “round square”, “regular pentahedron”, “golden mountain” (empirically empty), logical particles such as"