RIB'IN, n.1. A filet of silk; a narrow web of silk used for an ornament, as a badge, or for fastening some part of female dress.2. In naval architecture, a long narrow flexible piece of timber, nailed upon the outside of the ribs from the stem to the sternpost, so as to encompass the ship lengthwise; the principal are the floor-ribin and the breadth-ribin.
RIB'IN, v.t. To adorn with ribins.