Dictionary.com Thesaurus.com

pentagonoid

American

[pen-tag-uh-noid] / pɛnˈtæg əˌnɔɪd /

adjective

like a pentagon in shape.

Etymology

Origin of pentagonoid

First recorded in 1880–85; pentagon + -oid

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.