What term describes the injection of poison through a spider bite?

The term that describes the injection of poison through a spider bite is envenomation. This refers specifically to the process by which venom is delivered into the tissues of an organism, typically through a bite or sting by a venomous creature such as a spider, snake, or scorpion. Envenomation can lead to various physiological effects, depending on the type of venom and the amount injected.

Infection, on the other hand, is related to the invasion of body tissues by pathogens, such as bacteria or viruses. Contamination involves the presence of unwanted substances, which is not specific to the effects of venom. Irritation refers to a physical or chemical reaction causing discomfort or inflammation in tissues, but it does not accurately describe the specific action of venom injection. Thus, envenomation is the precise term that conveys the mechanism of poison delivery associated with spider bites.