, (S, K, TA,) verbal noun طَحْلَبَةٌ, (KL,) The water became overspread with the green substance calledطُحْلُب: (S, * TA:) or had much thereof. (K, TA.)
2.
And طَحْلَبَتِ الأَرْضُ (assumed tropical:) The land became green with herbage: (K, TA:) or began to become so: (TA.)