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Dictionary · Word part

dia-

A word beginning that means through, across, apart or completely.

DY-uh prefix

What it means

The beginning of many medical words. diarrheady-uh-REE-uhLoose or watery stools, usually three or more times a day or more often than normal for the person.dia- through-rrhea flowFull entry is stool flowing through, dialysisdy-AL-ih-sisA treatment that removes wastes and extra fluid from the blood when the kidneys can no longer do it.dia- through, apart-lysis separation, looseningFull entry separates wastes from blood through a membrane, a diagnosis is knowing a disease through its signs, and the diaphragm is a wall across the body between chest and abdomen.

Related terms

diarrhea

Loose or watery stools, usually three or more times a day or more often than normal for the person.

dialysis

A treatment that removes wastes and extra fluid from the blood when the kidneys can no longer do it.

di-

A word beginning that means two or twice.

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