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Definition of Phosphoethanolamine
1. Noun. (organic compound) The ethanolamine ester of phosphoric acid ¹
2. Noun. (context: by extension) The fatty acid ester of this compound; cephalin ¹
¹ Source: wiktionary.com
Medical Definition of Phosphoethanolamine
1. 2-O3POCH2CH2NH3 +;a key intermediate in the formation of cephalins; formed in liver and brain by phosphorylation of ethanolamine. Phosphoethanolamine cytidylyltransferase, a key enzyme in the biosynthesis of cephalins; it catalyses the reaction of phosphoethanolamine and CTP to form CDP-ethanolamine and pyrophosphate. (05 Mar 2000)