Supplementation

sup·ple·ment  (spl-mnt) n. 1. Something added to complete a thing, make up for a deficiency, or extend or strengthen the whole. 2. A section added to a book or document to give further information or to correct errors. 3. A separate section devoted to a special subject inserted into a periodical, such as a newspaper. 4. Mathematics The angle or arc that when added to a given angle or arc makes 180° or a semicircle. Also called supplementary angle. tr.v. (-mnt) sup·ple·ment·ed, sup·ple·ment·ing, sup·ple·ments To provide or form a supplement to. [Middle English, from Old French, from Latin supplmentum, from supplre, to complete; see supply.] supple·men·tari·ty (-târ-t) n. supple·menta·ry (-mnt-r, -tr), supple·mental (-mntl) adj. supple·men·tation (-mn-tshn) n.

supplement supplementary angles

Thesaurus

Noun	1.	supplementation - a quantity added (e.g. to make up for a deficiency) supplement increment, increase - the amount by which something increases; "they proposed an increase of 15 percent in the fare"
	2.	supplementation - the act of supplementing subjoining, subjunction expanding upon, expansion - adding information or detail