submicroscopic

[ suhb-mahy-kruh-skop-ik ]
/ ˌsʌb maɪ krəˈskɒp ɪk /
|

adjective

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. 2019

Examples from the Web for submicroscopic

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

    Star Surgeon|Alan Nourse
  • 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.

British Dictionary definitions for submicroscopic

submicroscopic

/ (ˌsʌbmaɪkrəˈskɒpɪk) /

adjective

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

Medicine definitions for submicroscopic

submicroscopic

[ sŭb′mī-krə-skŏpĭk ]

adj.

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.