spiny lobster: large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters
lobster: any of several edible marine crustaceans of the families Homaridae and Nephropsidae and Palinuridae
passive matrix display: a type of LCD display used for some portable computers; parallel wires run both vertically and horizontally and pixels are turned on when the wires intersecting at that pixel are both energized