ثدأثُنْدُؤَةٌ and ثَنْدُؤَةٌ, (M,) or ثَنْدُوَةٌ, (Lth, T,) or ثُنْدُوَةٌ, of the measure فُنْعُلَةٌ, with damm to the ف and ع, or, accord. to some, the ن is radical and the و augmentative, the measure being فُعْلُوَةٌ, (Msb in art. ثدى,) or ثُنْدُؤَةٌ and ثَنْدُوَةٌ, (ISk, T, S, Mgh, Msb, K,) with damm to the ث if with ء, (ISk, T, S, Mgh, Msb,) and of the measure فُعْلُلَةٌ, (ISk, S,) and with fet-h to the ث if with و, without ء, (ISk, T, S, Mgh, Msb, K,) and in this case of the measure فَعْلُوَةٌ, (ISk, S, K,) like قَرْنُوَةٌ and عَرْقُوَةٌ, (ISk, S,) [the ن in both cases, accord. to ISk, being radical,] so in the Bári', (Msb,) and so says Ktr, (TA,) but A'Obeyd says that the Arabs in general pronounced the word without ء, (Msb,) The ثَدْى [which generally signifies the breast, or mamma, but sometimes the pap, or mamilla,] of a man: (Mgh:) or the part, of a man, that corresponds to the ثَدْى of a woman: (T, S, Msb, K:) or the flesh of the ثَدْى: (Lth, T, M, Mgh:) or the flesh that is around the ثَدْى: (ISk, T, S, K:) or the base of the ثَدْى: (As, Zj in his “ Khalk el-Insán,” S, Msb, K, KL *:) or the portion of flesh that is at the base thereof: (Msb:) or i. q. ثَدْىٌ: (TA:) and the pap, or mamilla, of a woman and of a man: (KL:) accord. to the author of the Wá'ee, the pl. [of تندؤة] is ثَنَادِهُ, [with ه substituted for ء, unless the former be a mistranscription for the latter,] (TA,) and [that of ثندوة is] ثَنَادٍ. (Msb, TA.) The word ثدى is used in relation to men in the Saheeh of Muslim, and ثندؤة in relation to women in the Sunan of Aboo-Dáwood; and many of the lexicologists incline to the opinion that ثدى is common to men and women. (MF in art. ثند.) b2:  ثُنْدُؤَةُ الأَنْفِ, occurring in a trad., The tip, or fore part, of the nose. (IAth, TA.)