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

The DIA said it had been lobbying for mandatory safeguarding training to be incorporated into the Approved Driving Instructor licensing process "for some years".

From BBC

His head was down, but he looked up as I called, “Dia duit.”

From Literature

In 1967, at 16, he recorded his first album El Malo with Héctor Lavoe, forming an inimitable salsa duo for the Fania record label that popularised the songs Calle Luna, calle Sol, Abuelita, Ah, ah, oh, no, Ghana'e, El día de mi suerte, La murga and Juana Peña.

From BBC

Y lo consiguió, anotando 31 puntos en solo 12 minutos en la victoria del Team Stripes por 48-45 sobre el Team World, la actuación dominante del día.

From Los Angeles Times

Beside him, his friend Kalidou Dia, 21, added that he was "really disappointed, the students did everything they could to help them win the elections".

From Barron's