Panel n. : A sunken compartment with raised margins, molded or otherwise, as in ceilings, wainscotings, etc.

Panel n. : A piece of parchment or a schedule, containing the names of persons summoned as jurors by the sheriff; hence, more generally, the whole jury.

Panel n. : A prisoner arraigned for trial at the bar of a criminal court.

Panel n. : Formerly, a piece of cloth serving as a saddle; hence, a soft pad beneath a saddletree to prevent chafing.

Panel n. : A board having its edges inserted in the groove of a surrounding frame; as, the panel of a door.

Panel n. : One of the faces of a hewn stone.

Panel n. : A slab or plank of wood upon which, instead of canvas, a picture is painted.

Panel n. : A heap of dressed ore.

Panel n. : One of the districts divided by pillars of extra size, into which a mine is laid off in one system of extracting coal.

Panel n. : A plain strip or band, as of velvet or plush, placed at intervals lengthwise on the skirt of a dress, for ornament.

Panel n. : A portion of a framed structure between adjacent posts or struts, as in a bridge truss.

Panel v. t. : To form in or with panels; as, to panel a wainscot.

Example:
What solar Panel should I use to charge a deep cell?

Taxonomy
Panel, free encyclopedia, comic strip, aircraft, flat area, element, talk show, control panel, sequential art, search, free dictionary, committee, legal context, subset, full set, appeal court judges, contrast, hearing.

Defination from the web:
Panel painting, in art, either one element of a multi-element piece of art, such as a triptych, a piece of sequential art such as a graphic novel ... breaker panel, a flat area containing electrical circuit breakers ...