The Collaborative International Dictionary of English v.0.48:
Prima facie \Pri"ma fa"ci*e\ [L., from abl. of primus first + abl. of facies appearance.] At first view; on the first appearance. [1913 Webster] Prima facie evidence (of a fact) (Law), evidence which is sufficient to establish the fact unless rebutted. --Bouvier. [1913 Webster]