英语词汇“d”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Collins Concise English Dictionary © HarperCollins Publishers::

d, D /diː/ n ( pl d's, D's, Ds)

the fourth letter and third consonant of the modern English alphabet

d symbol for

density or relative density

D, d n. [countable], pl. Ds or D's, ds or d's.

Linguisticsthe fourth letter of the English alphabet, a consonant.
Education[sometimes: d] (in some grading systems) a grade or mark indicating poor or barely acceptable quality.

d',² [Pron. Spelling.]

do (esp. before you):How d'you like them?

'd,

contraction of had: They'd already left.
contraction of would: I'd like to see it.
contraction of did: Where'd you go?
contraction of -ed: She OK'd the plan.

D, Symbol.

[sometimes: d] the Roman numeral for 500.

D., an abbreviation of:

day.
December.
Democrat.
Democratic.
Doctor.

d., an abbreviation of:

date.
daughter.
day.
deceased.
diameter.
died.

ˈRo•man ˈnu•mer•al, n. [countable]

any of the numerals in the ancient Roman system of notation, still used occasionally. The basic symbols are I (=1), V (=5), X (=10), L (=50), C (=100), D (=500), and M (=1000).

D, d n., pl. D's or Ds, d's or 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 aD.
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.

d-,

Biochemistry[Symbol, Biochem.](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-.

d-, [Symbol, Chem., Biochem.]

Chemistry, Biochemistrydextrorotatory;
dextro- (distinguished from l-). Cf. D-.

d'¹ ,prep.

Foreign Termsde (used in French names as an elided form of de):Charles Louis d'Albert.
Foreign Termsdi (used in Italian names as an elided form of di):Gabriele d'Annunzio.

d'² ,

Grammar[Pron. Spelling.]contraction of do or did before you:How d'you like your eggs cooked? D'you go to the movies last night?

'd,

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.

[Elect.]debye.
Educationdeep.
depth.
Music and Dance, Optics[Optics.]diopter.
divorced.
ChemistryDutch.

D, Symbol.

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.
[Music.]
- 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.
[Chem.]deuterium.
[Elect.]
- electric displacement.
- a battery size for 1.5 volt dry cells: diameter, 1.3 in. (3.3 cm);
  length, 2.4 in. (6 cm).
Biochemistryaspartic acid.
Clothinga symbol for a shoe width size narrower than E and wider than C.
Clothinga proportional brassiere cup size larger than C.

D.,

day.
December.
Democrat.
Democratic.
Physicsdensity.
ReligionDeus.
BibleDeuteronomy.
Doctor.
dose.
Dutch.

d.,

(in prescriptions) give.

Latin dā

date.
daughter.
day.
deceased.
deep.
degree.
delete.
British Terms, Currencypence.

Latin dā

British Terms, Currencypenny.

Latin dā

Physicsdensity.
depth.
deputy.
dialect.
dialectal.
diameter.
died.
dime.
dividend.
dollar;
dollars.
dose.
drachma.

O•ke•ghem n.

Jean d' or Jan van c1430–c95, Flemish composer.

Also, Ockeghem, Ockenheim.

Ro′man nu′merals,

the numerals in the ancient Roman system of notation, still used for certain limited purposes, as in some pagination, dates on buildings, etc. The common basic symbols are I (=1), V (=5), X (=10), L (=50), C (=100), D (=500), and M (=1000). The Roman numerals for one to nine are: I, II, III, IV, V, VI, VII, VIII, IX. A bar over a letter multiplies it by 1000;
thus, X̄ equals 10,000. Integers are written according to these two rules: If a letter is immediately followed by one of equal or lesser value, the two values are added;
thus, XX equals 20, XV equals 15, VI equals 6. If a letter is immediately followed by one of greater value, the first is subtracted from the second;
thus, IV equals 4, XL equals 40, CM equals 900. Examples: XLVII(=47), CXVI(=116), MCXX(=1120), MCMXIV(=1914). Roman numerals may be written in lowercase letters, though they appear more commonly in capitals.

1725–35

D symbol for

a note having a frequency of 293.66 hertz (D above middle C) or this value multiplied or divided by any power of 2; the second note of the scale of C major
a key, string, or pipe producing this note
the major or minor key having this note as its tonic
deuterium
a semiskilled or unskilled manual worker, or a trainee or apprentice to a skilled worker
(as modifier): D worker
See also occupation groupings
(Roman numeral) 500

abbreviation for

Etymology: (for sense 8) from German Deutschland

'd contraction of

would or had: I'd, you'd

D. abbreviation for

US Democrat(ic)
Department
Duchess

d. abbreviation for

(in animal pedigrees) dam
daughter
Brit penny or pennies
diameter
died
dinar(s)
dollar(s)
drachma(s)

Etymology: (sense 3 and 6) Latin denarius

单词	d
释义	Collins Concise English Dictionary © HarperCollins Publishers:: d, D /diː/ n ( pl d's, D's, Ds) the fourth letter and third consonant of the modern English alphabet d symbol for density or relative density WordReference Random House Learner's Dictionary of American English © 2024 D, d /di/USA pronunciation n. [countable], pl. Ds or D's, ds or d's. Linguisticsthe fourth letter of the English alphabet, a consonant. Education[sometimes: d] (in some grading systems) a grade or mark indicating poor or barely acceptable quality. d',² [Pron. Spelling.] do (esp. before you):How d'you like them? 'd, contraction of had: They'd already left. contraction of would: I'd like to see it. contraction of did: Where'd you go? contraction of -ed: She OK'd the plan. D, Symbol. [sometimes: d] the Roman numeral for 500. D., an abbreviation of: day. December. Democrat. Democratic. Doctor. d., an abbreviation of: date. daughter. day. deceased. diameter. died. WordReference Random House Learner's Dictionary of American English © 2024 ˈRo•man ˈnu•mer•al, n. [countable] any of the numerals in the ancient Roman system of notation, still used occasionally. The basic symbols are I (=1), V (=5), X (=10), L (=50), C (=100), D (=500), and M (=1000). WordReference Random House Unabridged Dictionary of American English © 2024 D, d (dē),USA pronunciation n., pl. D's or Ds, d's or 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 aD. 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. d-, Biochemistry[Symbol, Biochem.](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-.* *d-,* [Symbol, Chem., Biochem.] Chemistry, Biochemistrydextrorotatory; dextro- (distinguished from l-). Cf. D-. d'¹ ,prep. Foreign Termsde (used in French names as an elided form of de):Charles Louis d'Albert. Foreign Termsdi (used in Italian names as an elided form of di):Gabriele d'Annunzio. d'² , Grammar[Pron. Spelling.]contraction of do or did before you:How d'you like your eggs cooked? D'you go to the movies last night? 'd, 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. D, [Elect.]debye. Educationdeep. depth. Music and Dance, Optics[Optics.]diopter. divorced. ChemistryDutch. D, Symbol. 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. [Music.] 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. [Chem.]deuterium. [Elect.] electric displacement. a battery size for 1.5 volt dry cells: diameter, 1.3 in. (3.3 cm); length, 2.4 in. (6 cm). Biochemistryaspartic acid. Clothinga symbol for a shoe width size narrower than E and wider than C. Clothinga proportional brassiere cup size larger than C. D., day. December. Democrat. Democratic. Physicsdensity. ReligionDeus. BibleDeuteronomy. Doctor. dose. Dutch. d., (in prescriptions) give. Latin dā date. daughter. day. deceased. deep. degree. delete. British Terms, Currencypence. Latin dā British Terms, Currencypenny. Latin dā Physicsdensity. depth. deputy. dialect. dialectal. diameter. died. dime. dividend. dollar; dollars. dose. drachma. WordReference Random House Unabridged Dictionary of American English © 2024 O•ke•ghem (ō′kə gem′),USA pronunciation n. Jean (zhän)USA pronunciation d' or Jan van (yän vän),USA pronunciation c1430–c95, Flemish composer.`Also, Ockeghem, Ockenheim.` WordReference Random House Unabridged Dictionary of American English © 2024 Ro′man nu′merals, the numerals in the ancient Roman system of notation, still used for certain limited purposes, as in some pagination, dates on buildings, etc. The common basic symbols are I (=1), V (=5), X (=10), L (=50), C (=100), D (=500), and M (=1000). The Roman numerals for one to nine are: I, II, III, IV, V, VI, VII, VIII, IX. A bar over a letter multiplies it by 1000; thus, X̄ equals 10,000. Integers are written according to these two rules: If a letter is immediately followed by one of equal or lesser value, the two values are added; thus, XX equals 20, XV equals 15, VI equals 6. If a letter is immediately followed by one of greater value, the first is subtracted from the second; thus, IV equals 4, XL equals 40, CM equals 900. Examples: XLVII(=47), CXVI(=116), MCXX(=1120), MCMXIV(=1914). Roman numerals may be written in lowercase letters, though they appear more commonly in capitals. 1725–35 Collins Concise English Dictionary © HarperCollins Publishers:: D symbol for a note having a frequency of 293.66 hertz (D above middle C) or this value multiplied or divided by any power of 2; the second note of the scale of C major a key, string, or pipe producing this note the major or minor key having this note as its tonic deuterium a semiskilled or unskilled manual worker, or a trainee or apprentice to a skilled worker (as modifier): D worker See also occupation groupings (Roman numeral) 500 abbreviation for Etymology: (for sense 8) from German Deutschland Collins Concise English Dictionary © HarperCollins Publishers:: 'd contraction of would or had: I'd, you'd Collins Concise English Dictionary © HarperCollins Publishers:: D. abbreviation for US Democrat(ic) Department Duchess Collins Concise English Dictionary © HarperCollins Publishers:: d. abbreviation for (in animal pedigrees) dam daughter Brit penny or pennies diameter died dinar(s) dollar(s) drachma(s) Etymology: (sense 3 and 6) Latin denarius
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