Online Google Dictionary

symmetry 中文解釋 wordnet sense Collocation Usage
Noun
/ˈsimitrē/,
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symmetries, plural;
  1. The quality of being made up of exactly similar parts facing each other or around an axis
    • - this series has a line of symmetry through its center
    • - a crystal structure with hexagonal symmetry
  2. Correct or pleasing proportion of the parts of a thing
    • - an overall symmetry making the poem pleasant to the ear
  3. Similarity or exact correspondence between different things
    • - a lack of symmetry between men and women
    • - history sometimes exhibits weird symmetries between events
  4. A law or operation in which a physical property or process has an equivalence in two or more directions


  1. (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
  2. balance among the parts of something
  3. isotropy: (physics) the property of being isotropic; having the same value when measured in different directions
  4. (symmetrical) having similarity in size, shape, and relative position of corresponding parts
  5. (symmetrical) harmonious: exhibiting equivalence or correspondence among constituents of an entity or between different entities
  6. Symmetry (from Greek: "συμμετρεῖν" = to measure together), generally conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically pleasing proportionality and balance; For example, Aristotle ascribed spherical shape to the heavenly bodies, attributing this ...
  7. Symmetry in biology is the balanced distribution of duplicate body parts or shapes. The body plans of most multicellular organisms exhibit some form of symmetry, either radial symmetry or bilateral symmetry or "spherical symmetry". A small minority exhibit no symmetry (are asymmetric).
  8. The following is a list of episodes from the USA Network original series The Dead Zone. The series debuted on June 16, 2002.
  9. Symmetry occurs not only in geometry, but also in other branches of mathematics. It is actually the same as invariance: the property that something does not change under a set of transformations.
  10. Facial symmetry, is one element of bodily symmetry, including fluctuating asymmetry. Along with traits such as averageness and youthfulness it influences judgements of aesthetic traits of physical attractiveness and beauty , and is associated with fitness-linked traits including health, It is ...
  11. In physics, symmetry includes all features of a physical system that exhibit the property of symmetry—that is, under certain transformations, aspects of these systems are "unchanged", according to a particular observation. ...
  12. Exact correspondence on either side of a dividing line, plane, center or axis; The satisfying arrangement of a balanced distribution of the elements of a whole
  13. (symmetric) Symmetrical; Of a relation R on a set S, such that xRy if and only if yRx for all members x and y of S (that is, if the relation holds between any element and a second, it also holds between the second and the first)
  14. (Symmetric) Equal distribution about one or more axes.
  15. (symmetric) for all x and z in X it holds that if xRz then zRx
  16. (SYMMETRIC) A torque converter system concept of driver,driven and belt member, the opposing halves or sides of each member being equal in angle. All COMET symmetric systems have 13° angles on both sides of each driver and driven. ...
  17. (Symmetric) A term applied to magic squares where each number added to the number symmetrically opposite the square's centre sums to 0.5xC. See Durer's "Melencolie" square.
  18. (Symmetric) A term used to explain the normal, rhythmic ac flow of current (transient or dc component = ); the steady state component of any current or fault current calculation.
  19. (Symmetric) One key that is used for both encrypting and decrypting. Think of this as the key to the front door of your house. You use your key to lock the door and when you come home you use the same key to unlock the door. You have just one key. ...
  20. (Symmetric) equal and balanced when one side is compared to the other
  21. (symmetric) For a 1d shape divided by a point, a 2d shape divided by an axis, or a 3d shape divided by a plane, if the two halves are exactly mirror images of each other, then they are symmetric. Other things may exhibit symmetry as well, such as mathematical functions.
  22. (symmetric) Sites on DNA bound by a dimeric protein usually (there are exceptions!) have a two-fold dyad axis of symmetry. ...
  23. (symmetric) divisible into two or more equal parts.
  24. (symmetric) occurring in the same parts on opposite sides of the body (e.g., right leg and left leg).
  25. (SYMMETRICAL) corresponding designs of a similar nature placed opposite one another