D

D ¹

1. The symbol for the isotope deuterium.

2. also d The symbol for the Roman numeral 500.

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d ¹ or D  (d)

n. pl. d's or D's also ds or Ds

1. The fourth letter of the modern English alphabet.

2. Any of the speech sounds represented by the letter d.

3. The fourth in a series.

4. Something shaped like the letter D.

5. D The lowest passing grade given to a student in a school or college.

6. Music

a. The second tone in the scale of C major or the fourth tone in the relative minor scale.

b. A key or scale in which D is the tonic.

c. A written or printed note representing this tone.

d. A string, key, or pipe tuned to the pitch of this tone.

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d ²

abbr.

1. deuteron

2. diameter

3. differential

4. down quark

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d

1. Physics density

2. deci-

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D

1. Music the second note of the scale of C major

2. Chem deuterium

3. the Roman numeral for 500

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d

Abbreviation of diameter

Thesaurus

Noun	1.	D - a fat-soluble vitamin that prevents rickets calciferol, cholecalciferol, ergocalciferol, viosterol, vitamin D ergosterol - a plant sterol that is converted into vitamin D by ultraviolet radiation fat-soluble vitamin - any vitamin that is soluble in fats
	2.	D - the cardinal number that is the product of one hundred and five 500, five hundred large integer - an integer equal to or greater than ten
	3.	d - the 4th letter of the Roman alphabet Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"
Adj.	1.	d - denoting a quantity consisting of 500 items or units 500, five hundred cardinal - being or denoting a numerical quantity but not order; "cardinal numbers"

Translations

D, d [diː] n (letter) → D, d;

(MUS): D → re m;

D for David (US);

D for Dog → D de Dolores

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D¹, d² [diː] n (= letter) → D, d m;

(Mus);

D → ré m;

D for David (US);

D for Dog → D comme Désirée

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D¹, d¹ [diː] n (letter) → D nt, d nt;

D for David, D for Dog (US) → D wie Dora

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D² [diː] n (Mus) → D nt, d nt

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D, d [diː] n (letter) → D, d f or m inv;

(MUS): D → re m;

D for David (US);

D for Dog → D come Domodossola