/ Dictionary / Index C collateral: Meaning and Definition of Find definitions for: col•lat•er•al Pronunciation: (ku-lat'ur-ul), [key] — n. security pledged for the payment of a loan: He gave the bank some stocks and bonds as collateral for the money he borrowed. a subordinate or accessory part. a side branch, as of a blood vessel or nerve. Seecollateral circulation. a relative descended from the same stock, but in a different line. —adj. accompanying; auxiliary: He received a scholarship and collateral aid. additional; confirming: collateral evidence; collateral security. secured by collateral: a collateral loan. aside from the main subject, course, etc.; secondary: These accomplishments are merely collateral to his primary goal. descended from the same stock, but in a different line; not lineal: A cousin is a collateral relative. pertaining to those so descended. situated at the side: a collateral wing of a house. situated or running side by side; parallel: collateral ridges of mountains. standing side by side. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: collateral (Thesaurus) collate collateral circulation Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language