A phosphatidic acid is an ester of a glycerol, two fatty acids and a phosphoric acid. Who coined this term, and is the word's "phat" part related to english "fat"?
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2 Answers
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Apparently, "phosphatidate" is from "phosphate" + "-ide" + "-ate".
The word "phosphatidic acid" is from "phosphate" + "-ide" + "-ic acid".
Phosphate ($\ce{PO4^3-}$) is the anion of phosphoric acid ($\ce{H3PO4}$).
The suffix "-ide" is used in biochemistry to just about anything. It just denotes an element of a group of related compounds.
Now, "-ate" and "-ic acid" denotes the acidic nature of the compounds.
And no, it is not related to the English word "fat".
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Phosphatidate can be broken down to "Phosph(orous) + at(e) + id(e) + ate"
-ate means either "having" or "characterised by" and is used in chemistry to denote esp. a salt or ester of an acid.
-ide is a suffix meaning "a compound of " or to denote a group of relate do compounds as in monosaccharide or to indicate that is a binary compound as in Sodium chloride.
-ic also means relating to or characterised by.
Therefore phosphatidate literally means it's a compound containing a moiety characterised by having an ester of phosphorus.
Who coined this term?
According to this site it was 1st used in 1884 by International scientific vocabulary.
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$\begingroup$ Can it be one of "ate" was for phosphoric acid, and other for fatty acid. and ide for glycerol ( like a monosaccharide)? $\endgroup$ Commented Jan 6, 2017 at 17:30
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