mojave rattlesnake: extremely dangerous; most common in areas of scattered scrubby growth; from Mojave Desert to western Texas and into Mexico
rattlesnake: pit viper with horny segments at the end of the tail that rattle when shaken
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