Found 1 items, similar to Bivium.
English → English (gcide) Definition: Bivium Bivium \Biv"i*um\, n. [L., a place with two ways. See Bivious.] (Zo["o]l.) One side of an echinoderm, including a pair of ambulacra, in distinction from the opposite side (trivium), which includes three ambulacra. [1913 Webster]