A narrow field of study or work within a specialty, as pediatric dermatology or geriatric psychiatry.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "subspecialty" in a sentence
"This kind of subspecialty referral care will end with rationing."
"It is done by means of wait lists, especially for the most expensive services such as subspecialty surgery (open heart, joint replacement and similar procedures), complex imaging (CT and MRI) and expensive drugs."
"Schedule a subspecialty appointment or diagnostic test"