different between gyrodiagonal vs gyroparallelogram

English

gyro- +? diagonal

gyrodiagonal (plural gyrodiagonals)

gyro- +? parallelogram

gyroparallelogram (plural gyroparallelograms)

(mathematics) A hyperbolic quadrilateral whose two gyrodiagonals intersect at their gyromidpoints, analogous to a parallelogram in Euclidean space.

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