Definitions | deleterious |
| adjective
- harmful or hurtful, to physical, mental or moral health.
- a chemical
- 1850, w:Nathaniel Hawthorne, Nathaniel Hawthorne, s:The Scarlet Letter/XV, The Scarlet Letter - Chapter XV,
- : Or might it suffice him, that every wholesome growth should be converted into something and malignant at his touch?
Etymology: From Ancient Greek "deleterios", from , "to hurt, to damage."
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