puzzle box
noun
1A puzzle in the form of a box.
2 Psychology a box with no obvious connection between its door and the opening device, designed to test the learning abilities of an animal in trying to release itself.
Origin
Mid 19th century; earliest use found in Freeman's Journal.
- polygenesist
- polygenetic
- polygenetically
- polygenic
- polygenically
- polygenism
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- polyglacial
- polyglacialism
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- polyglutamic