vehicle designed to travel over snow, ice, and similar surfaces that offer limited traction and weight-supporting capability. As the performance of th...
inhalation and exhalation of the fumes of burning tobacco in cigars and cigarettes and pipes. Some persons draw the smoke into their lungs; others do ...
(ch k) (KEY) , 1947–, American microbiologist, b. Chicago, grad. Univ. of California, Berkeley. A professor at the Univ. of Colorado, he discovered ...