security blanket: Meaning and Definition of

secu'rity blan"ket

Pronunciation: [key]
  1. a blanket or other familiar item carried esp. by a young child to provide reassurance and a feeling of psychological security.
  2. someone or something that gives a person a sense of protection or a feeling of security: His wealthy uncle is his security blanket.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.