درس

رَبْعٌ دَارِسٌ ربع دارس [ A house of which the remains are becoming effaced, erased, rased, or obliterated: or i. q. رَبْعٌ مَدْرُوسٌ]. (A.) ― -b2- اِمْرَأَةٌ دَارِسٌ, (M, K,) or, accord. to Lh, جَارِيَةٌ دَارِسٌ, (M,) (tropical:) A woman, (M, K,) or girl, (Lh, K,) menstruating: (Lh, M, K:) pl. دُرَّسٌ and دَوَارِسُ. (M.)