Definition: The word "actinical" in medicine refers to the process by which cells or tissues become more like the cell they are attached to. It typically involves changes in the cellular structure, such as cell membrane movements and protein production, that occur during this transformation. This is important for maintaining tissue integrity and preventing abnormal growth and expansion of tissue structures.

actinical

Definition: Actinic cells are small, abnormal cells in the skin that produce light-sensitive melanin. These cells can be found on the skin, nails, or eyes. Definition: Actinic cells produce light-sensitive melanin when they are stimulated by sunlight. These cells are present in all parts of the body and can be found on the skin, nails, and eyes. The light-sensitive pigment produced is called melanin, which helps to protect the skin from UV radiation. Actinic cells are important for preventing sunburn and protecting against cancer, but excessive production of these cells has been linked to increased risk of skin cancer and other skin diseases.

actinically