Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| a scrap or morsel of food left at a meal. |
| a fool or simpleton; ninny. |
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
dosimeter do·sim·e·ter (dō-sĭm'ĭ-tər)
n.
An instrument that measures the amount of radiation absorbed in a given period.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
dosimeter  (dō-sĭm'ĭ-tər) Pronunciation Key
An instrument that measures the amount of x-ray or other radiation absorbed in a given period. |
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
dosimeter
instrument that measures exposure to ionizing radiation over a given period. There are three types of dosimeters worn by persons who work with or near sources of radiation. The film badge is the most popular and inexpensive. In it, photographic or dental X-ray film, wrapped in light-tight paper, is mounted in plastic. Badges are checked periodically, and the degree of exposure of the film indicates the cumulative amount of radiation to which the wearer has been exposed. Thermoluminescent dosimeters are nonmetallic crystalline solids that trap electrons when exposed to ionizing radiation and can be mounted and calibrated to give a reading of radiation level. The ion-chamber dosimeter, like the thermoluminescent one, is reusable, but it is self-reading for immediate determination of exposure
Learn more about dosimeter with a free trial on Britannica.com.
Cite This Source
