isocephalism

Century Dictionary and Cyclopedia

1. n. Same as isocephaly.

Wiktionary

1. n. art A peculiarity in the design of bas relief by which the heads of human figures are kept at the same height from the ground, whether the characters are seated, standing, or mounted.

GNU Webster's 1913

1. n. (Art) A peculiarity in the design of bas-relief by which the heads of human figures are kept at the same height from the ground, whether the personages are seated, standing, or mounted on horseback; -- called also isokephaleia.