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Adjective: two-dimensional  ,too,dI'men-shun-ul
  1. Involving two dimensions
    "In most sedimentary rocks a two-dimensional structure known as bedding is visible";
    - planar
     
  2. Lacking the expected range or depth; not designed to give an illusion or depth
    "a film with two-dimensional characters"; "a flat two-dimensional painting";
    - 2-dimensional, flat

See also: coplanar, flat, flattened, multidimensional, placoid, planate, platelike, tabular

Encyclopedia: Two-dimensional