adj.
Pronunciation: ' näk-sh ə s
Function: adjective
Etymology: Middle English noxius, from Latin, from noxa harm; akin to Latin noc ē re to harm, nec-, nex violent death, Greek nekros dead body
Date: 15th century
1 a : physically harmful or destructive to living beings < noxious waste> b : constituting a harmful influence on mind or behavior especially : morally corrupting < noxious doctrines>
2 : DISAGREEABLE , OBNOXIOUS
synonyms see PERNICIOUS
– nox · ious · ly adverb
– nox · ious · ness noun