Di
the chemical symbol for (Elements & Compounds) didymium
DI
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
DI
drill instructor.
Di
Chem. Symbol. didymium.
di-1
, 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-]
di-2
, var. of
dis- 1 before
b, d, l, m, n, r, s, v, and sometimes
g and
j: digest; divide. di-3
, var. of
dia- before a vowel:
diorama. di.
diameter.
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