ˈbæləns ˌkɒɹɪˈspɒndəns aɪˈsɒtɹəpi pɹəˈpɔɹʃən pɹəˈpɔːʃən ˈsɪmɪtɹi (physics) the property of being isotropic; having the same value when measured in different directions (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane balance among the parts of something