definitions

ultramicroscope

[ uhl-truh-mahy-kruh-skohp ]
/ ˌʌl trəˈmaɪ krəˌskoʊp /
|

noun

an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.

Nearby words

ultrametamorphism, ultramicrobalance, ultramicrochemistry, ultramicrofiche, ultramicrometer, ultramicroscope, ultramicroscopic, ultramicroscopy, ultramicrotome, ultraminiature, ultraminiaturize

Origin of ultramicroscope

First recorded in 1905–10; ultra- + microscope
Related formsul·tra·mi·cro·scop·ic [uhl-truh-mahy-kruh-skop-ik] /ˌʌl trəˌmaɪ krəˈskɒp ɪk/, ul·tra·mi·cro·scop·i·cal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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

British Dictionary definitions for ultramicroscopic (1 of 2)

ultramicroscopic

/ (ˌʌltrəˌmaɪkrəˈskɒpɪk) /

adjective

too small to be seen with an optical microscope
of or relating to an ultramicroscope
Derived Formsultramicroscopy (ˌʌltrəmaɪˈkrɒskəpɪ), noun

British Dictionary definitions for ultramicroscopic (2 of 2)

ultramicroscope

/ (ˌʌltrəˈmaɪkrəˌskəʊp) /

noun

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

Medicine definitions for ultramicroscopic (1 of 2)

ultramicroscopic

[ ŭl′trə-mī′krə-skŏp′ĭk ]

adj.

Too minute to be seen with an ordinary microscope.
Of or relating to an ultramicroscope.

Medicine definitions for ultramicroscopic (2 of 2)

ultramicroscope

[ ŭl′trə-mī′krə-skōp′ ]

n.

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.