noun
bilaterian; Bilateria
A taxonomic term for animals with bilateral symmetry. Used in biology and zoology contexts.
左右相称動物は、体の左右がほぼ対称になっている動物のグループです。
Bilaterians are a group of animals whose left and right sides are roughly symmetrical.
Compound of 左右 (left and right), 相称 (symmetry), and 動物 (animal). A modern scientific term.