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infraorder

Scientific  
/ ĭn′frə-ôr′dər /

  1. A taxonomic category of related organisms ranking below a suborder and containing one or more families.

Example Sentences

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Termites are insects of the infraorder Isoptera.

From The New Yorker

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.