(zoology) One side of an echinoderm, including a pair of ambulacra, in distinction from the opposite side (trivium), which includes three ambulacra.

Having two longitudinal stripes or vittae

plural of bivium

Of or relating to the bivium.

(music) A neume that doubles the value of the first note in a series of virgae.

plural of bivirga

A surname.

(organic chemistry) Any of a family of steroid glycosides present in the sea cucumber Bohadschia bivittata

plural of bivittoside