Definition: A type of phospholipid found in biological membranes, similar to cephalin, which is involved in various cellular processes.

Example: Kephalin plays a crucial role in the structure of cell membranes.

Definition: A surgical procedure that involves removing a portion of the cornea, which is the clear front part of the eye.

Example: The doctor recommended a keratectomy to improve the patient's vision.

Definition: A strong protein that makes up hair, nails, and the outer layer of skin.

Example: Keratin is essential for the health and strength of our hair and nails.

Definition: The process where skin cells change into a tough, protective material called keratin, which is found in hair and nails.

Example: Keratinization is essential for the formation of healthy hair and nails.

Definition: To produce a tough protein that is found in skin, hair, and nails, or to change into a form that contains this protein.

Example: As the skin cells mature, they begin to keratinize, forming a protective layer.

Definition: To change something into a tough protein called keratin, which is found in hair, nails, and skin.

Example: The skin cells will keratinize to form a protective barrier.

Definition: Made of a tough protein that is found in hair, nails, and the outer layer of skin.

Example: The outer layer of the animal's skin is keratinous, providing protection against the environment.

Definition: A condition where the cornea, the clear front part of the eye, becomes inflamed.

Example: The doctor diagnosed her with keratitis after she complained of eye pain and redness.

Definition: A type of skin growth that is usually benign and consists of a thickened area of skin, often caused by pressure or irritation.

Example: The doctor diagnosed the patient with a keratoma on his foot.

Definition: A surgical procedure that reshapes the cornea to improve vision by cutting a flap in the eye's surface, removing a portion of the cornea, and then reshaping it before putting it back.

Example: Many people choose keratomileusis to correct their vision instead of wearing glasses or contact lenses.

Definition: A type of surgery that involves grafting or transplanting the cornea, which is the clear front part of the eye.

Example: The doctor recommended keratoplasty to improve the patient's vision.