"the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second"
"a base found in DNA and RNA and derived from pyrimidine; pairs with guanine"
"an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds"
"ten 10s"
"a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second"
"a general-purpose programing language closely associated with the UNIX operating system"