Meaning of “panel” - Learner’s Dictionary

panel

noun [ C ] uk us /ˈpænəl/
PIECE

a flat, rectangular piece of wood, metal, etc that forms the surface of a door, wall, etc

PEOPLE

a group of people who are chosen to discuss something or make a decision about something:

a panel of experts
CONTROLS

the part of a car, aircraft, etc that the controls are fixed to

→ See also solar panel

(Definition of “panel” from the Cambridge Learner’s Dictionary © Cambridge University Press)