the act of moving hurriedly and in a careless manner | changing location rapidly |
(American football) an attempt to advance the ball by running into the line | a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression |
a sudden forceful flow | a rate (usually rapid) at which something happens |
a sudden burst of activity | the ratio of the focal length to the diameter of a (camera) lens system |
the swift release of a store of affective force | distance travelled per unit time |
grasslike plants growing in wet places and having cylindrical often hollow stems | |