مَزَادَةٌ مُفْأَمَةٌ [A leathern water-bag] widened with a third skin (T, M) between the two [other] skins: [see شَعِيبٌ:] and in like manner دَلْوٌ مُفْأَمَةٌ [apparently meaning a widened leathern bucket]. (M.)
3.
And سِقَاءٌمُفْأَمٌ [A skin for water or milk] filled. (TA.)