dia-

¹ American  

1. 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 ).

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dia. ² American  

abbreviation

1. diameter.

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dia- British  

prefix

1. through, throughout, or during

   diachronic

2. across

   diactinic

3. apart

   diacritic

4. (in botany) at right angles

   diatropism

5. in opposite or different directions

   diamagnetism

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dia– Scientific  

1. A prefix meaning “through” or “across,” as in diameter, the length of a line going through a circle.

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Etymology

Origin of dia-

< Greek, combining form representing diá (preposition) through, between, across, by, of, akin to dýo two and di- di- ¹

Example Sentences

“Buen día, Tía Zimbul,” we say now, taking turns hugging her lightly, as if she might break.

From Literature

“Buen día, my dear family,” she responds.

From Literature

“Buen día,” Ahmet says to Papa in our Spanish.

From Literature

Un día después de cumplir 40 años, McVay entrenó como si ya no fuera el niño prodigio, sino un líder envejecido que se expone a las críticas.

From Los Angeles Times

She was hired as the first curator exclusively devoted to such art in any encyclopedic American museum in 2001, a year after the DIA created a Center for African American Art.

From The Wall Street Journal