Gerund noun referring to the act or process of making something toxic.
toxifyinggerund / present participle Participial adjective denoting the property of making something toxic.
The factory was accused of releasing toxifying chemicals into the river.
Фабрику обвинили в выбросе токсичных химикатов в реку.
toxifygerund / present participle Used attributively to describe something that causes or is causing toxicity.