(n) :
an event that is hard to predict; a pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over a unpredictable path to the plate due to micro-turbulance in the air
(n) :
an event that is hard to predict; a pitch thrown with the ball gripped on the fingertips and released with no rotation which travels over a unpredictable path to the plate due to micro-turbulance in the air