- too small to be seen through a microscope.
Origin of submicroscopic
Examples from the Web for submicroscopic
Historical Examples of submicroscopic
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.The Natural History of Clay
Alfred B. Searle
Very few, if any, higher life forms existed that did not have some sort of submicroscopic parasite afflicting them.Star Surgeon
- too small to be seen through an optical microscope
- Too small to be visible under the most powerful optical microscope.