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submicroscopic

[suhb-mahy-kruh-skop-ik]
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adjective
  1. too small to be seen through a microscope.
Sometimes sub·mi·cro·scop·i·cal.

Origin of submicroscopic

Related formssub·mi·cro·scop·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for submicroscopic

Historical Examples

  • In any case, a microscope would have done Brown little good in trying to detect the submicroscopic beings of the Rell.

    The Hitch Hikers

    Vernon L. McCain

  • These colloid substances have a submicroscopic or micellian structure; they are web-like, porous and absorb water eagerly.

  • Very few, if any, higher life forms existed that did not have some sort of submicroscopic parasite afflicting them.

    Star Surgeon

    Alan Nourse


British Dictionary definitions for submicroscopic

submicroscopic

adjective
  1. too small to be seen through an optical microscope
Derived Formssubmicroscopically, adverb
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

submicroscopic in Medicine

submicroscopic

(sŭb′mī-krə-skŏpĭk)
adj.
  1. Too small to be visible under the most powerful optical microscope.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.