قلح

قَلَحٌ ذ (S, A, Mgh, Msb, K) and ↓ قُلَاحٌ, (Msb, K,) the former being the inf. n. of قَلِحَ, and the latter a simple subst., (Msb,) Yellowness in, or of, the teeth: (S, A, K:) or alteration of the teeth by yellowness or خُضْرَة [here meaning, as expl. before, a dark, or an ashy, dust-colour ]. (Mgh, * Msb.) [See also 1.]