Main Entry:

¹sup·ple·ment

Pronunciation:

\ˈsə-plə-mənt\

Function:

noun

Etymology:

Middle English, from Latin supplementum, from supplēre to fill up, complete — more at supply

Date:

14th century

1 a: something that completes or makes an addition b: dietary supplement2: a part added to or issued as a continuation of a book or periodical to correct errors or make additions3: an angle or arc that when added to a given angle or arc equals 180°