Definitions

1. adjective

relating to or characterized by a state of being toxic or harmful, especially after a period of being free from such conditions

“The posttoxic environment in the abandoned factory posed a significant threat to the health of the cleanup team.”

2. noun

a state or condition of being toxic or harmful, especially after a period of being free from such conditions

“The company’s posttoxic phase was marked by a series of layoffs and restructuring efforts.”