supplementation

[ suhp-luh-men-tey-shuh n, -muh n- ]
/ ˌsʌp lə mɛnˈteɪ ʃən, -mən- /

noun

the act or process of supplementing.
the state of being supplemented.
something that supplements.

Origin of supplementation

First recorded in 1850–55; supplement + -ation

Example sentences from the Web for supplementation