What is the term for the process by which chemicals are brought into the body through an open cut?

The correct term for the process by which chemicals enter the body through an open cut is injection. This term specifically describes the introduction of substances directly into the body via a break in the skin, such as a cut or abrasion. This method is particularly concerning in hazardous material situations because it can bypass the body's natural defense mechanisms, such as the skin barrier, leading to a rapid onset of potential harm from toxic substances.

In contrast, absorption typically refers to the process by which chemicals penetrate the skin or mucous membranes but does not involve a break in the skin. Inhalation is the process of breathing in substances through the respiratory system, while ingestion involves the consumption of substances through the mouth. Each of these processes has distinct pathways and implications for exposure, which is why injection is the most accurate description for the situation outlined in the question.