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-idium

American  

  1. a diminutive suffix, corresponding to -idion, used in zoological, biological, botanical, anatomical, and chemical terms.

    peridium.

Etymology

Origin of -idium

< Latin < Greek -idion -idion

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.