unifacial
U`ni*fa"cial, a. Etym: [Uni- + facial.] Defn: Having but one front surface; as, some foliaceous corals are unifacial, the polyp mouths being confined to one surface.
U`ni*fa"cial, a. Etym: [Uni- + facial.] Defn: Having but one front surface; as, some foliaceous corals are unifacial, the polyp mouths being confined to one surface.