NIH uncommon us noun 1. an agency in the Department of Health and Human Services whose mission is to employ science in the pursuit of knowledge to improve human health; is the principal biomedical research agency of the federal government SynonymsNational Institutes of Health Related words Broader terms agency Parts Department of Health and Human Services Part of National Library of Medicine WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
