But statistically, driving on a snowy Monday afternoon in January is not even close to the most dangerous time to drive. The most dangerous month, it turns out, is August, and Saturday the most dangerous day, according to the National Highway Traffic Safety Administration. All told, auto accidents kill more than 40,000 people in the U.S. each year; they are the No. 1 cause of death for people between the ages of 1 and 34.
: the condition or property of being dimorphic or dimorphous: as a (1) : the existence of two different forms (as of color or size) of a species especially in the same population (2) : the existence of an organ in two different forms b: crystallization of a chemical compound in two different forms.
But this distinction is not a fundamental one, because some fungi can alternate between a yeast phase and a hyphal phase, depending on environmental conditions. Such fungi are termed dimorphic (with two shapes) and they include several that cause disease of humans.