sonant

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Voiced, as a speech sound.
2. n. A voiced speech sound.
3. n. A syllabic consonant in Indo-European.

Century Dictionary and Cyclopedia

1. Pertaining to or having sound; sounding.
2. In pron., noting certain alphabetic sounds, as the vowels, semivowels, nasals, and voiced mutes and fricatives, the utterance of which includes the element of tone, or a vibration of the vocal chords, as a, l, n, b, z, v (the last three as opposed to p, s, f, which are similar utterances without tone); voiced, vocal, intonated (soft and flat are also sometimes used in the same sense).
3. In entomology, same as sonorific, 2.
4. n. In pron., a sonant letter.

Wiktionary

1. adj. Of or pertaining to sound; sounding.
2. adj. linguistics voiced
3. n. linguistics A voiced letter.

GNU Webster's 1913

1. adj. Of or pertaining to sound; sounding.
2. adj. (Phonetics) Uttered, as an element of speech, with tone or proper vocal sound, as distinguished from mere breath sound; intonated; voiced; vocal; tonic; the opposite of nonvocal, or surd; -- said of the vowels, semivowels, liquids, and nasals, and particularly of the consonants b, d, g hard, v, etc., as compared with their cognates p, t, k, f, etc., which are called nonvocal, surd, or aspirate.

WordNet 3.0

1. n. a speech sound accompanied by sound from the vocal cords
2. adj. produced with vibration of the vocal cords