Bilaterian

bilaterian - noun - an animal having bilateral symmetry.

(Jim here - animals that have a top and bottom, a left and right, a front and back, are bilaterian. Some examples of bilaterians are humans, dogs, fish, and termites. Contrast bilateral symmetry to radial symmetry, like a jellyfish, which has a top and bottom, but no left and right, and no front or back.)