n. insufficiency of one or more essential vitamins in the body
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any of several diseases caused by deficiency of one or more vitamins
Word Usage
"Depression has significant co-morbidity with illnesses associated with hypovitaminosis D such as osteoporosis, diabetes, heart disease, hypertension, multiple sclerosis, and rheumatoid arthritis."