dust-counting microscope

dust-counting microscope

[′dəst ‚kau̇nt·iŋ ′mī·krə‚skōp]
(engineering)
A microscope equipped for quantitative dust sample analysis; magnification is usually 100X.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.