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tracheole

American

[trey-kee-ohl] / ˈtreɪ kiˌoʊl /

noun

Entomology.

any of the smallest branches of an insect trachea.

Etymology

Origin of tracheole

First recorded in 1900–05; trache(a) + -ole ¹

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.