Meaning of SYMMETRY in English


transcription, транскрипция: [ ˈsi-mə-trē ]


( plural -tries )

Etymology: Latin symmetria, from Greek, from symmetros symmetrical, from syn- + metron measure — more at measure

Date: 1563

1. : balanced proportions ; also : beauty of form arising from balanced proportions

2. : the property of being symmetrical ; especially : correspondence in size, shape, and relative position of parts on opposite sides of a dividing line or median plane or about a center or axis — compare bilateral symmetry , radial symmetry

3. : a rigid motion of a geometric figure that determines a one-to-one mapping onto itself

4. : the property of remaining invariant under certain changes (as of orientation in space, of the sign of the electric charge, of parity, or of the direction of time flow) — used of physical phenomena and of equations describing them

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.