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Ddd vs D - What's the difference?

ddd | d |

As a noun ddd

is (organic chemistry) dichlorodiphenyldichloroethane, an insecticide related to ddt.

As a letter d is

the fourth letter of the.

As a numeral d is

cardinal number five hundred (500).

As a symbol d is

deuterium, when it needs to be distinguished from ordinary hydrogen.

ddd

English

Noun

(en-initialism)
  • (organic chemistry) Dichlorodiphenyldichloroethane, an insecticide related to DDT
  • (telecommunications) , a network-provided service that enables non-local telephone calls to be made without operator assistance
  • , a common form of mint-made error on coins that results from degradation of the die used to strike the coin
  • A designation on prerecorded compact discs indicating a "full digital recording" (recorded, mixed and mastered in digital); compare AAD, ADD, DAD.

    • d

    Translingual

    {{Basic Latin character info, previous=c, next=e, image= (wikipedia d)

    Etymology 1

    Modification of capital letter D, from (etyl) letter .

    Letter

  • The fourth letter of the .

    • Usage notes

    The letter d is used in the alphabets of many languages, and in several romanization systems of non-Latin scripts to represent the (.

    See also

    (Latn-script) * (select similar letters and symbols) * (other scripts) * See

    Etymology 2

    Lower case form of upper case roman numeral D, a standardization of D or notch.

    Alternative forms

    * D,

    Numeral

  • cardinal number five hundred (500).
    • Usage notes
    With a bar over the numeral, i.e., as d, it represents five hundred thousand (500,000).
    See also
    * Lesser roman numeral symbol: * Greater roman numeral symbol: *

    Etymology 3

    Symbol

    (Voiced alveolar plosive) (head)
  • the (path-independent, ) differential of a quantity
  • voiced alveolar plosive

    • See also

    * (mathematics) {{Letter , page=D , NATO=Delta , Morse=-ยทยท , Character=D4 , Braille=? }} Image:Latin D.png, Capital and lowercase versions of D , in normal and italic type Image:Fraktur letter D.png, Uppercase and lowercase D in Fraktur Image:Uncial d.png, Approximate form of upper case letter D in uncial script that was the source for lower case d ----