From HomoExcelsior

1. To pursue a special activity, occupation, or field of study. 2. To develop so as to become adapted to a specific function or environment; undergo specialization. 3. The shop specializes in mountain-climbing gear. 4. To make specific mention of; particularize. 5. specialized her field of research. 6. To adapt to a particular function or environment; cause to undergo specialization. 7. To specify the payee in endorsing (a check).

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