'Unifacial' definitions:
Definition of 'unifacial'
(from WordNet)
adjective
Having but one principal or specialized surface; "a primitive unifacial flint tool"
Definition of 'Unifacial'
From: GCIDE
- Unifacial \U`ni*fa"cial\, a. [Uni- + facial.] Having but one front surface; as, some foliaceous corals are unifacial, the polyp mouths being confined to one surface. [1913 Webster]