'amidophosphoric' originates from combining 'amido-' from 'amide' and 'phosphoric' from 'phosphorus', where 'amido-' refers to the presence of an amide group and 'phosphoric' refers to the presence of phosphorus.

'Amidophosphoric' is a modern term used in chemistry to describe compounds containing both amide and phosphoric groups.

Initially, it meant 'containing amide and phosphoric groups', and this meaning has remained consistent in modern usage.