so small as to be invisible or indistinct without the use of the microscope: microscopic organisms.Compare macroscopic.
very small; tiny.
of, relating to, or involving a microscope: microscopic investigation.
very detailed; meticulous: a microscopic view of society.
suggestive of the precise use of the microscope; minute: microscopic exactness.
Also mi·cro·scop·i·cal.Related formsmi·cro·scop·i·cal·ly, adverbnon·mi·cro·scop·ic, adjectivenon·mi·cro·scop·i·cal, adjectivenon·mi·cro·scop·i·cal·ly, adverbun·mi·cro·scop·ic, adjectiveun·mi·cro·scop·i·cal·ly, adverb
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for microscopically
Historical Examples of microscopically
British Dictionary definitions for microscopically
less commonly microscopical
Derived Formsmicroscopically, adverb not large enough to be seen with the naked eye but visible under a microscopeCompare macroscopic
very small; minute
of, concerned with, or using a microscope
characterized by or done with great attention to detail
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
Word Origin and History for microscopically
1732, "like a microscope;" see microscope + -ic. Meaning "of minute size" is from 1760s. Related: Microscopical; microscopically.
Online Etymology Dictionary, © 2010 Douglas Harper
microscopically in Medicine
Too small to be seen by the unaided eye but large enough to be studied under a microscope.
Of, relating to, or concerned with a microscope.
Being or characterized as exceedingly small; minute.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.