Pronunciation: (dē), [key]
— pl. D's Ds, d's ds.
- the fourth letter of the English alphabet, a consonant.
- any spoken sound represented by the letter D or d, as in dog, ladder, ladle, or pulled.
- something having the shape of a
- a written or printed representation of the letter D or d.
- a device, as a printer's type, for reproducing the letter D or d.
- (of a molecule) having a configuration resembling the dextrorotatory isomer of glyceraldehyde: always printed as a small capital, roman character (distinguished from l-). Cf. d-.
— Symbol, Chem., Biochem.
- dextrorotatory; dextro- (distinguished from l-). Cf. D-.
- de (used in French names as an elided form of de): Charles Louis d'Albert.
- di (used in Italian names as an elided form of di): Gabriele d'Annunzio.
- contraction of do or did before you: How d'you like your eggs cooked? D'you go to the movies last night?
- contraction of had: I was glad they'd gone.
- contraction of did: Where'd they go?
- contraction of should or would: He'd like to go. I'd like to remind you of your promise.
- contraction of -ed: She OK'd the plan.
- the fourth in order or in a series.
- (sometimes l.c.) (in some grading systems) a grade or mark, as in school or college, indicating the quality of a student's work as poor or barely passing.
- (sometimes l.c.) a classification, rating, or the like, indicating poor quality.
- the second tone in the scale of C major, or the fourth tone in the relative minor scale, A minor.
- a string, key, or pipe tuned to this tone.
- a written or printed note representing this tone.
- (in the fixed system of solmization) the second tone of the scale of C major, called re.
- the tonality having D as the tonic note.
- (sometimes l.c.) the Roman numeral for 500. Cf. Roman numerals.
- electric displacement.
- a battery size for 1.5 volt dry cells: diameter, 1.3 in. (3.3 cm); length, 2.4 in. (6 cm).
- aspartic acid.
- a symbol for a shoe width size narrower than E and wider than C.
- a proportional brassiere cup size larger than C.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
- (in prescriptions) give.
- dollar; dollars.