Definition of panniers:
(n) :
A large basket or bag fastened, usually in pairs, to the back of a bicycle or pack animal, or carried in pairs over the shoulders.
(n) :
A decorative basket for the display of flowers or fruits.
(n) :
(historical, fashion) One of a pair of hoops used to expand the volume of a woman's skirt to either side.
(n) :
A breadbasket.
(n) :
(historical, military) A piece of basketwork for protecting archers, or, filled with gravel or sand, for forming and protecting embankments, etc.