Some articles about rosacea, particularly those reporting results of scientific studies, may contain unfamiliar medical terminology. Here is a list of some frequently used rosacea terms and their meanings.

• Blepharitis: Inflammation of the eyelids.

• Chalazion: A lesion on the eyelid due to plugging of the meibomian glands.

• Edema: Swelling from abnormally large amounts of fluids in the tissues.

If you're keeping up on rosacea, you may come across medical terminology that is commonly used to describe and explain the condition. Here is a list of frequently used technical terms and their meanings.