Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine
DELETERIOUS
Hurtful; noxious; destructive; pernicious; as, a harmful plant or characteristic; a harmful example. Delete"riously, Delete"riousness.
Origin: LL. Deleterius noxious, Gr, fr. To damage, hurt; prob. Akin to L. Delere to destroy.
Source: Websters Vocabulary