a. [f. BI- pref.2 1 + LITERAL, f. L. lītera or littera letter.] Having or consisting of two letters; quasi-sb. a linguistic root consisting of two letters. Biliteralism, a biliteral condition of language.
1787. Sir W. Jones, Anniv. Disc., iv. (1824), I. 43. It is the genius of the Sanscrit that the roots of verbs be almost universally biliteral.
1863. R. Townsend, Mod. Geom., I. 2. The former or biliteral notation is more convenient.
1874. Sayce, Compar. Philol., ii. 78. The so-called biliterals are the result of phonetic decay.
1860. Farrar, Orig. Lang., x. 212. The supposition of an original biliteralism.