1. injecting or introducing venom into something or someone
Usage: present participle of 'envenom'; often used literally of snakes or venomous creatures
2. making bitter, hostile, or malicious; embittering
Usage: figurative use; often describes making a situation or relationship worse

Examples

• The snake was envenomating its prey with a single bite.
• His harsh words were envenomating the already tense atmosphere.
• The viper's fangs were envenomating the small rodent.
• She accused him of envenomating their friendship with lies and betrayal.
• The toxic remarks were envenomating the debate between the two candidates.
• The spider was envenomating its captured insect with paralyzing venom.