plane of symmetry

plane of symmetry
1. : a plane through a crystal that divides the crystal into two parts that are mirror images of each other
2. : a vertical fore-and-aft plane that divides an airplane into symmetrical halves

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plane of symmetry,
a vertical plane that divides a symmetrical object, such as an aircraft, into symmetrical halves.

Useful english dictionary. 2012.

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Look at other dictionaries:

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