Meaning of D in English
1. Elect. debye.
4. Optics. diopter.
1. the fourth in order or in a series.
2. ( 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.
3. ( sometimes l.c. ) a classification, rating, or the like, indicating poor quality.
a. the second tone in the scale of C major, or the fourth tone in the relative minor scale, A minor.
b. a string, key, or pipe tuned to this tone.
c. a written or printed note representing this tone.
d. (in the fixed system of solmization) the second tone of the scale of C major, called re.
e. the tonality having D as the tonic note.
5. ( sometimes l.c. ) the Roman numeral for 500. Cf. Roman numerals .
6. Chem. deuterium.
a. electric displacement.
b. a battery size for 1.5 volt dry cells: diameter, 1.3 in. (3.3 cm); length, 2.4 in. (6 cm).
8. Biochem. aspartic acid.
9. a symbol for a shoe width size narrower than E and wider than C.
10. a proportional brassiere cup size larger than C.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012