Meaning of TOXIC in English

TOXIC

tox ‧ ic /ˈtɒksɪk $ ˈtɑːk-/ BrE AmE adjective

[ Date: 1600-1700 ; Language: Late Latin ; Origin: toxicus , from Latin toxicum 'poison' , from Greek toxikon 'arrow poison' , from toxon 'bow, arrow' ]

containing poison, or caused by poisonous substances ⇨ toxin :

fumes from a toxic waste dump

toxic chemicals/substances/fumes/gases

Toxic chemicals were spilled into the river.

a highly toxic pesticide

—toxicity /tɒkˈsɪsəti, tɒkˈsɪsɪti $ tɑːk-/ noun [uncountable and countable] :

The metal has a relatively low toxicity to humans.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.