| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024di-,1 prefix. - di- comes from Greek, where it has the meaning "two, double''. This meaning is found in such words as: diode, dioxin, diptych.
Collins Concise English Dictionary © HarperCollins Publishers:: di- prefix - twice; two; double: dicotyledon
- containing two specified atoms or groups of atoms: dimethyl ether, carbon dioxide
- a nontechnical equivalent of bi-1
Etymology: via Latin from Greek, from dis twice, double, related to duo two. Compare bi-1 di- combining form - variant of dia-: diopter
dia-, prefix. - dia- comes from Greek, where it has the meanings "through, across, from point to point;
completely.'' These meanings are found in such words as: diagnosis, dialogue, dialysis, diameter, diaphanous, diarrhea.
WordReference Random House Unabridged Dictionary of American English © 2024dia-, - a prefix occurring in loanwords from Greek (diabetes;
dialect) and used, in the formation of compound words, to mean "passing through'' (diathermy), "thoroughly,'' "completely'' (diagnosis), "going apart'' (dialysis), and "opposed in moment'' (diamagnetism).
Also,[esp. before a vowel,] di-. - Greek, combining form representing diá (preposition) through, between, across, by, of, akin to dýo two and di- di-1
- Mathematicsdiameter.
WordReference Random House Unabridged Dictionary of American English © 2024di1 (dē),USA pronunciation prep. - Foreign Termsfrom;
of: used in Italian personal names, originally to indicate place of origin:Conte di Savòia.
Also, Di. di2 (dē),USA pronunciation n. [Music.]- Music and Dancea tone in the ascending chromatic scale between do and re.
Di (dī),USA pronunciation n. - Chemistrya female given name, form of Diana.
DI, - GovernmentDepartment of the Interior.
- drill instructor.
Di, [Symbol, Chem.]- didymium.
di-1 : - a prefix occurring in loanwords from Greek, where it meant "two,'' "twice,'' "double'' (diphthong);
on this model, freely used in the formation of compound words (dicotyledon;
dipolar) and in chemical terms (diatomic;
disulfide).
Also, dis- 2. Cf. mono-. - Greek, combining form representing dís twice, double, akin to dýo two. See bi-, twi-
- Middle English Latin
: - var. of dis- 1 before b, d, l, m, n, r, s, v, and sometimes g and j: digest;
divide.
di-3 : - var. of dia- before a vowel:diorama.
di., - Mathematicsdiameter.
Also, dia. Collins Concise English Dictionary © HarperCollins Publishers:: dia-, di- prefix - through, throughout, or during: diachronic
- across: diactinic
- apart: diacritic
Etymology: from Greek dia through, between, across, by |