| 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. |
| security blanket n.
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security blanket
Something that dispels anxiety, as in I always carry my appointments calendar; it's my security blanket. This colloquial term, dating from about 1960, was at first (and still is) used for the blanket or toy or other object held by a young child to reduce anxiety.