Bilateria is a large clade/infrakingdom of animals called bilaterians, characterized by bilateral symmetry during embryonic development.

Symmetry in biology refers to the symmetry observed in organisms, including plants, animals, fungi, and bacteria.

Bilateral is the second studio album by Norwegian progressive metal band Leprous.

Bilateral may refer to any concept including two sides, in particular: Bilateria, bilateral animals Bilateralism, the political and cultural relations between two states Bilateral, occurring on both sides of an organism Bilateral symmetry, symmetry between two sides of an organism Bilateral filter, an image processing algorithm Bilateral amplifier, a type of amplifier Bilateral, an album by the band Leprous Bilateral school, see Partially selective school

Having identical parts on each side of an axis

Affecting or undertaken by two parties

Having two sides or parts