bowling ball

his observation that X-rays behave like miniature bowling balls in their interactions with electrons provided evidence for the quantal nature of light (1892-1962)

n a bowling game that is played by rolling a bowling ball down a bowling alley at a target of nine wooden pins n a bowling pin of the type used in playing ninepins or (in England) skittles

n a bowling game that is played by rolling a bowling ball down a bowling alley at a target of nine wooden pins n a bowling pin of the type used in playing ninepins or (in England) skittles v play skittles

a finger hole made to fit the thumb (as in a bowling ball)