What is Panel ?
Panel is (noun) 1. a flat rectangular piece which forms part of something Unscrew the panel at the back of the washing machine. 2. a section of different coloured material A pink skirt with white panels. 3. a group of people who answer questions or who judge a competition She’s on the panel that will interview candidates for the post. a panel of experts a group of people who give advice on a problem (verb) to cover something with sheets of wood He decided to panel the study in oak. The room is panelled in walnut. (NOTE: panelling panelled. The US spelling is paneling paneled.)
source: Easier English, Student Dictionary Upper Intermediate Level