Winter wetsuits are called steamers. They are long leg and long arm wetsuits. Generally suited to colder temps, they come in a range of thicknesses (thicker being warmer).
4/3mm combos are the most common for winter and 3/2mm for spring/autumn.
GBS - glued and blindstitched is a construction method of the seam joining and offers a vastly superior warmth factor, now standard on any superior suit.