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ptomaine
1. Any of a class of foul-smelling nitrogenous substances produced by bacteria during putrefaction of animal or plant protein; formerly thought to be toxic.
2. A basic nitrogenous organic compound produced by bacterial putrefaction of protein.
3. A term for food poisoning that is no longer in scientific use; food poisoning was once thought to be caused by ingesting ptomaines.
4. The generic name of certain alkaloid bodies found in putrefying animal and vegetable matter, some of which are very poisonous.
5. Etymology: from Greek ptoma, "corpse"; literally, "a falling, a fallen thing"; from piptein, "to fall".

The conception is of poison produced in decaying matter. Incorrectly formed; the proper Greek would be ptomatine.

This entry is located in the following unit: ptomato-, ptomat-, pto-, -ptosia, -ptosis, -ptoma, -ptot- (page 2)
Word Entries containing the term: “ptomaine
ptomaine poisoning
1. Food poisoning, erroneously believed to be the result of ptomaine ingestion. It is no longer in scientific use.
2. Etymology: Via French from Italian ptomaina; from Greek ptōma, "fallen body, corpse" and Greek piptein, "to fall".

It was once thought that food poisoning was a result of bacterial toxins, but this has been rejected by scientists.

The identification of certain alkaloidal substances, or ptomaines, is of great interest to toxicologists. In 1881, the discovery of Professor Selmi as to the formation of poisonous alkaloids, which he calls ptomaïnes, in the human body after death. In 1884, these "cadaveric" alkaloids, or "ptomaines" as they have also been called. In 1891, the chemical ferments produced in the system, the albumoses or ptomaines which may exercise so disastrous an influence.

Italian ptomaina, erroneously formed by Professor Selmi of Bologna, from Greek fallen, "body, corpse". Professor Selmi's first paper in Annali di Chimica (1876), announced the body as "la potomaina o prima alcaloide dei cadaveri"; but this was partly corrected in his work of 1878 to ptomaina. It is to be regretted that the full correction to ptomatine was not made at its reception into English.

—Oxford English Dictionary
This entry is located in the following units: poto-, pot- + (page 2) ptomato-, ptomat-, pto-, -ptosia, -ptosis, -ptoma, -ptot- (page 2)
Word Entries at Get Words: “ptomaine
ptomaine
This entry is located in the following unit: Italian words in English (page 3)