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Also found in: Medical, Encyclopedia.


1. diagnostic imaging
2. donor insemination
3. drill instructor
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


the chemical symbol for
(Elements & Compounds) didymium


abbreviation for
1. (Military) Defence Intelligence
2. (Professions) Detective Inspector
3. (Medicine) Donor Insemination
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


drill instructor.


Chem. Symbol.


a combining form meaning “two,” “double”: diamide; dicotyledon; dihedron. Compare dis- 2.
[< Greek, comb. form representing dís twice, double, akin to dýo two. compare bi-1, twi-]


var. of dis- 1 before b, d, l, m, n, r, s, v, and sometimes g and j: digest; divide.


var. of dia- before a vowel: diorama.


Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Further analysis using matrix-assisted laser desorption ionisation time of flight mass spectrometry (MALDI-TOF MS) identified the causative organism as A.
Matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF MS) has recently been introduced into clinical microbiology laboratories in New Zealand and overseas.
Matrix-assisted laser desorption ionisation time-of-flight mass spectrometry for identification of clinically significant bacteria that are difficult to identify in clinical laboratories.
The system comprises the microflex MALDI-TOF (matrix-assisted laser desorption ionisation time-of-flight) mass spectrometer, software, IVD labeled reagents, a 48-spot MALDI target and a library of microorganism reference spectra.
The assays are utilised to determine hemoglobin variants and diabetes risk, using Bruker's Matrix-Assisted Laser Desorption Ionisation (MALDI) Biotyper platform for clinical mass spectrometry and based on intellectual property developed at the UVic GBC Proteomics Centre.