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toxic

tox·ic [ tóksik ]


adjective 
Definition:
 
1. involving something poisonous: relating to or containing a poison or toxin

2. deadly: causing serious harm or death



noun  (plural tox·ics)
Definition:
 
poisonous substance: a poison or toxin

[Mid-17th century. Via medieval Latin toxicus "poisoned" < Greek toxikos "of the bow" ( Greek toxikon pharmakon meant "poison for smearing arrows")]

tox·i·cal·ly adverb
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