Definition: The word 'abirritant' in English means a substance that absorbs heat from the body during physical activity or to provide thermal insulation. It may be a substance like water, oil, or even air itself. The term comes from the Greek for "to absorb" and refers to substances that help maintain or increase body temperature. In more scientific terms, it can refer to any substance that helps to keep something at a certain temperature, such as a piece of cloth that covers a wound to reduce further damage by the body's immune system. It may also be used in the context of studying heat transfer and thermodynamics, referring to substances that help regulate temperature differences between different regions or objects. The term was originally used in the field of radiobiology, but it is now more commonly used in fields like thermodynamics and mechanical engineering.
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