A dermatologist is a doctor who has extensive training and knowledge of the skin, scalp, hair and nails and treats conditions that affect those areas. These doctors will evaluate any abnormality, blemish or lesion on the skin in order to determine the cause and will determine a course of treatment.
Definition of rampart for English Language Learners. : a tall, thick stone or dirt wall that is built around a castle, town, etc., to protect it from attacks.
Rampart: Picture the battlements in the previous definition. The battlements are the top sections of the outer wall of the castle. Now to access these battlements the archers would stand on a walk way that was a wall in it's own right. This walkway is built right up against the outer wall and is called the Rampart.