n. [ L. putrefactio: cf. F. putréfaction. See Putrefy. ] 1. The act or the process of putrefying; the offensive decay of albuminous or other matter. [ 1913 Webster ]
☞ Putrefaction is a complex phenomenon involving a multiplicity of chemical reactions, always accompanied by, and without doubt caused by, bacteria and vibriones; hence, putrefaction is a form of fermentation, and is sometimes called putrefaction fermentative. Putrefaction is not possible under conditions that preclude the development of living organisms. Many of the products of putrefaction are powerful poisons, and are called cadaveric poisons, or ptomaïnes. [ 1913 Webster ]
2. The condition of being putrefied; also, that which putrefied. “Putrefaction's breath.” Shelley. [ 1913 Webster ]
n. [ Cf. F. raréfaction. See Rarefy. ] The act or process of rarefying; the state of being rarefied; -- opposed to condensation; as, the rarefaction of air. [ 1913 Webster ]
n. [ L. torrefacere, torrefactum, to torrefy: cf. F. torréfaction. See Torrefy. ] The act or process of torrefying, or the state of being torrefied. Bp. Hall. [ 1913 Webster ]
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