| pH-stat | A device for continuously sensing the pH of a solution and automatically adding acid or alkali as necessary to keep the pH constant; used to follow the time course of reactions that liberate an acid or alkali. (05 Mar 2000) |
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| STAT | A common medical abbreviation which is used to imply urgent or rush. It is derived from a latin word statim which means immediately. (12 Dec 1998) |