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spiroid

American  
[spahy-roid] / ˈspaɪ rɔɪd /

adjective

  1. more or less spiral; resembling a spiral.

spiroid British  
/ ˈspaɪrɔɪd /

adjective

  1. resembling a spiral or displaying a spiral form

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of spiroid

1840–50; < New Latin spīroīdēs < Greek speiroeidḗs. See spiro- 2, -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.