orthophosphate

[ awr-thuh-fos-feyt ]
/ ˌɔr θəˈfɒs feɪt /

noun Chemistry.

a salt or ester of orthophosphoric acid, or any compound containing the trivalent group −PO4.

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Origin of orthophosphate

First recorded in 1855–60; ortho- + phosphate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for orthophosphate

orthophosphate
/ (ˌɔːθəʊˈfɒsfeɪt) /

noun

any salt or ester of orthophosphoric acid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012