One of the sonant mutes β, δ, γ (b, d, g), in Greek, or of their equivalents in other languages, so named as intermediate between the tenues, π, τ, κ (p, t, k), and the aspiratæ (aspirates) φ, θ, χ (ph or f, th, ch). Also called middle mute, or medial, and sometimes soft mute.
