- an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
Origin of ultramicroscope
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ultramicroscopic
The term virus or filterable virus is likewise applied to these ultramicroscopic and filterable agents.The Fundamentals of Bacteriology
Charles Bradfield Morrey
In this way as well as by the inoculation of animals the presence of the ultramicroscopic kinds may be demonstrated.Insects and Diseases
Rennie W. Doane
- too small to be seen with an optical microscope
- of or relating to an ultramicroscope
- a microscope used for studying colloids, in which the sample is strongly illuminated from the side and colloidal particles are seen as bright points on a dark backgroundAlso called: dark-field microscope
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
- Too minute to be seen with an ordinary microscope.
- Of or relating to an ultramicroscope.
- A microscope with high-intensity illumination used to study very minute objects.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.