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.
Trap rock forming a characteristic pavement, Giant's Causeway, Northern Ireland. Trap rock, also known as either trapp or trap, is any dark-colored, fine-grained, nongranitic intrusive or extrusive igneous rock. Types of trap rock include basalt, peridotite, diabase, and gabbro.