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| a scrap or morsel of food left at a meal. |
| the offspring of a zebra and a donkey. |
| Skinner box | |
| —n | |
| a device for studying the learning behaviour of animals, esp rats and pigeons, consisting of a box in which the animal can move a lever to obtain a reward, such as a food pellet, or a punishment, such as an electric shock | |
| [C20: named after B. F. | |