tóxico
toxic
adjective TOHK-see-koh Rare
Origin: From Greek toxikon (poison for arrows), via Latin.
Also means
poisonous
Usage Note
Tóxico describes chemical or biological toxicity (sustancia tóxica) but has also become a high-frequency colloquial word for a harmful relationship or person: una relación tóxica, un jefe tóxico. The noun tóxico (a toxic substance, a poison) is also in use. The related noun is toxicidad and the field is toxicología.
Examples
"Ese producto químico es muy tóxico."
Natural Translation
That chemical product is very toxic.

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