Pyromic pyro Pyroglutamate hydrolase deficiency Pyrotechnic Outside Warning System Pyrophosphate crystals measurement Pyromellitic Dinahydride AnhYdride pyrohydrolytic-ion chromatograpy pyroelectric temperature transducer Pyrocystis fusiformis f. bicornia pyrogenation hydrocarbon generation pyrophosphate copper electroplating pyrotechnically generating aerosols