How to Say "poisonous" in Spanish
The most common Spanish word for “poisonous” is “tóxico” — use 'tóxico' when referring to substances, often man-made like chemicals or pollutants, that are harmful if ingested, inhaled, or absorbed..
tóxico
Examples
Ten cuidado, esos productos de limpieza son tóxicos.
Be careful, those cleaning products are toxic.
venenoso
/beh-neh-NOH-soh//be.neˈno.so/
Examples
Este hongo es muy venenoso; no lo toques.
This mushroom is very poisonous; don't touch it.
Algunas serpientes de esta zona son venenosas.
Some snakes in this area are venomous.
El producto de limpieza es venenoso si se ingiere.
The cleaning product is poisonous if swallowed.
One word for two English concepts
In English, we say 'venomous' for animals that bite and 'poisonous' for things you eat. In Spanish, 'venenoso' is the all-in-one word for both!
Gender matching
If you are describing something feminine, like 'una araña' (a spider), you must change the ending to 'a': 'una araña venenosa'.
Using the wrong 'to be'
Mistake: “Está venenoso.”
Correction: Es venenoso. Use 'ser' because being poisonous is a permanent characteristic of that thing.
Tóxico vs. Venenoso
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