Definition of specializes:
(v) :
To focus one's study upon a particular skill, field, topic, or genre.
(v) :
To focus one's business upon a particular item or service.
(v) :
To make distinct or separate from what is common, particularly:
(v) :
(uncommon, transitive) To narrow in scope.
(v) :
(biology, transitive) To make distinct or separate due to form or function.
(v) :
(intransitive) To become distinct or separate from what is common, particularly: