Dos`-à-dos" (?), adv. [F.]
Back to back; as, to sit dos-à-dos in a dogcart; to dance dos-à-dos, or so that two dancers move forward and pass back to back.
© Webster 1913
Dos`-à-dos", n.
A sofa, open carriage, or the like, so constructed that the occupants sit back to back.
© Webster 1913