|the offspring of a zebra and a donkey.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|Cockcroft (kŏk'krôft') Pronunciation Key
British physicist who, with Ernest Walton, was the first to successfully split an atom using a particle accelerator in 1932. For this work they shared the 1951 Nobel Prize for physics.