Phonogram /(?)/

Pho·no·gram

Phonogram

n.
  1. A letter, character, or mark used to represent a particular sound.
    Phonograms are of three kinds: (1) Verbal signs, which stand for entire words; (2) Syllabic signs, which stand for the articulations of which words are composed; (3) Alphabetic signs, or letters, which represent the elementary sounds into which the syllable can be resolved.
    — I. Taylor (The Alphabet).
  2. A record of sounds made by a phonograph.