1. biliteral - Noun
2. biliteral - Adjective
Consisting of two letters; as, a biliteral root of a Sanskrit verb.
A word, syllable, or root, consisting of two letters.
Source: Webster's dictionaryLoprieno (1995a) p. 46 The basic word in Egyptian, similar to Semitic and Berber, is a triliteral or biliteral root of consonants and semiconsonants. Source: Internet
Phonograms formed with one consonant are called uniliteral signs; with two consonants, biliteral signs; with three triliteral signs. Source: Internet
Redundant characters accompanying biliteral or triliteral signs are called phonetic complements (or complementaries). Source: Internet
Etymology The word pharaoh ultimately was derived from a compound word represented as pr-3 main, written with the two biliteral hieroglyphs pr main "house" and ꜥꜣ main "column". Source: Internet