di

di

1 [dee]
preposition
from; of: used in Italian personal names, originally to indicate place of origin: Conte di Savòia.
Also, Di.


Origin:
< Italian < Latin

Dictionary.com Unabridged

di

2 [dee] .
noun Music.
a tone in the ascending chromatic scale between do and re.

Origin:
perhaps alteration of do2

Di

[dahy] .
noun
a female given name, form of Diana.

DI

1.
Department of the Interior.
2.
drill instructor.

Di

Symbol, Chemistry.

di-

1
a prefix occurring in loanwords from Greek, where it meant “two,” “twice,” “double” (diphthong ); on this model, freely used in the formation of compound words (dicotyledon; dipolar ) and in chemical terms (diatomic; disulfide ).
Also, dis-2.
Compare mono-.


Origin:
Middle EnglishLatin < Greek, combining form representing dís twice, double, akin to dýo two. See bi-, twi-

di-

2
variant of dis-1. before b, d, l, m, n, r, s, v, and sometimes g and j: digest; divide.

di-

3
variant of dia- before a vowel: diorama.

di.

Also, dia.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
Di
 
the chemical symbol for
didymium

DI
 
abbreviation for
1.  Defence Intelligence
2.  Detective Inspector
3.  Donor Insemination

di-1
 
prefix
1.  twice; two; double: dicotyledon
2.  a.  containing two specified atoms or groups of atoms: dimethyl ether; carbon dioxide
 b.  a nontechnical equivalent of bi-
 
[via Latin from Greek, from dis twice, double, related to duo two. Compare bi-1]

di-2
 
combining form
variant of dia- : diopter

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

di- pref.

  1. Two; twice; double: dichromatic.

  2. Containing two atoms, radicals, or groups: diiodide.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
di-  
A prefix that means "two," "twice," or "double." It is used commonly in chemistry, as in dioxide, a compound having two oxygen atoms.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Abbreviations & Acronyms
Di
didymium
DI
  1. diabetes insipidus

  2. diagnostic imaging

  3. donor insemination

  4. drill instructor

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

di

in music, transverse (or side-blown) bamboo flute of the Han Chinese. Traditional di have a membrane of bamboo or reed tissue covering the hole that is located between the mouth hole and the six finger holes. This membrane creates a distinctive sound characteristic of much Chinese flute music. An additional two or more end holes aid in the expulsion of air and are sometimes used to attach decorative silk tassles. Di have a two-octave range, and complete modern sets can be purchased in Western tunings. There are many varieties of traditional lengths and construction

Learn more about di with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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