* -toxic: This suffix indicates "poisonous" or "related to poison." Examples: toxic, cytotoxic, phototoxic.
* -toxin: This suffix denotes a poisonous substance. Examples: endotoxin, mycotoxin, neurotoxin.
* -ous: This suffix can indicate a poisonous nature, but it is often used more broadly to indicate a quality or characteristic. Examples: venomous, poisonous.
It's important to note that the suffix alone doesn't always guarantee a word refers to poison. The context of the word is crucial for understanding its meaning.