A symmetrical arrangement means that two sides or halves of something are exactly the same or very similar. It is a balanced and equal arrangement. Full definition
A loosely symmetrical arrangement of furniture and accessories in shades of cream with hints of sage makes this Christmas scheme feel larger than it is. (idealhome.co.uk)
The building below it's the Orangery, a conservatory where 250 orange trees are hosted in winter while in summer they beautify the front gardens in symmetrical arrangements, it's Germany after all. (tbymallano.com)
With enough spheres in the same place, they clustered to form symmetrical arrangements, which the team dubbed «living crystals» (see video, bit.ly / WXNkqm). (newscientist.com)