PDH may refer to:
*
Angiotensin-converting enzyme
Angiotensin-converting enzyme (), or ACE, is a central component of the renin–angiotensin system (RAS), which controls blood pressure by regulating the volume of fluids in the body. It converts the hormone angiotensin I to the active vasocon ...
, an enzyme
*
Plesiochronous digital hierarchy, in telecommunications networks
*
Pound–Drever–Hall technique
The Pound–Drever–Hall (PDH) technique is a widely used and powerful approach for stabilizing the frequency of light emitted by a laser by means of feedback, locking to a stable cavity. The PDH technique has a broad range of applications includi ...
for stabilizing a laser's output
*
Pyranose dehydrogenase (acceptor)
Pyranose dehydrogenase (acceptor) (, ''pyranose dehydrogenase'', ''pyranose-quinone oxidoreductase'', ''quinone-dependent pyranose dehydrogenase'', ''PDH'') is an enzyme with systematic name ''pyranose:acceptor oxidoreductase''. This enzyme cataly ...
, an enzyme
*
Pyruvate dehydrogenase
Pyruvate dehydrogenase is an enzyme that catalyzes the reaction of pyruvate and a lipoamide to give the acetylated dihydrolipoamide and carbon dioxide. The conversion requires the coenzyme thiamine pyrophosphate.
Pyruvate dehydrogenase is ...
, an enzyme
{{Disambiguation