| Answer | Crossword Clue |
|---|---|
| spaldeen | a small hollow rubber ball |
| spaldeens | SPALDEEN, a small hollow rubber ball |
| handball | a small rubber ball / to throw a ball to (often figuratively) |
| TABLETENNIS | Game with a hollow ball |
| PING | Sound made by a hollow celluloid ball. |
| blastula | An animal embryo at the early stage of development when it is a hollow ball of cells |
| blastulas | An animal embryo at the early stage of development when it is a hollow ball of cells |
| pockets | The hollow in the center of a baseball glove or mitt where the ball can best be caught |
