رُغَثَاءُ

A certain duct (عِرْقٌ) in the breast, or mamma, (S, K,) that emits the milk: (S:) or a certain sinew, or tendon, (عَصَبَةٌ,) beneath the breast, or mamma: (ISk, T, S, K:) sometimes written ↓ رَغْثَاءُ: (Fr, T, TA:) or the رُغَثَاوَانِ [dual of رُغَثَاءُ] are the two sinews, or tendons, that are beneath the two breasts, or mammæ: or what are between the two shoulder-joints and the two breasts, next the arm-pit: (TA:) or two portions of flesh, (JK,) or two small portions of flesh, (TA,) between the ثُنْدُوءَة [q. v.], and the shoulderjoint, (JK, TA,) on either side of the chest: (TA:) or the blackness [apparently meaning the areola] of each of the two breasts. (TA.)