سُوقٌ مَادَّةٌ

(assumed tropical:) A market full of people and of goods for sale. (TA, article حكر.)

مَادَّةُ شَىْءٍ The accession, or that which is added, whatever it be, to a thing.

You say, دَعْ فِى الضَّرْعِ مَادَّةَ اللَّبَنِ Leave thou in the udder the accession, to the quantity of milk, which has collected and become added to that previously left therein. (L.) See also عِينَةٌ, last sentence.

You also say, الأَعْرَابُ مَادَّةُ الإِسْلَامِ (A, L) (tropical:) The Arabs of the desert are the means of aiding the Muslims, and increasing their armies, and strengthening them by the contribution of their wealth as alms: a phrase occurring in a tradition (L.) See also مَدَدٌ.

مَادَّةُ بَحْرٍ [The supply of a sea or great river]. (Az, in L, article بحر.)

مَادَّةٌ Continuous increase; synonym زِيَادَةٌ مُتَّصِلَةٌ: (S, A, L, K:) that whereby a thing is extended: the ة is added to give intensiveness to the signification. (M, L.)

[Also, in the conventional language of philosophy, Substance having extent, or extended; matter; the material, or materials, of which a thing having form consists, or is composed: considered as that of which a thing having form consists, it is termed also طِينَةٌ: considered as capable of assuming or receiving form, it is especially termed هَيُولَى: as that from which composition commences, عُنْصُرٌ: and as that to which resolution reduces a thing, إِسْطُقِسٌ, or أُسْطُقُسٌ, as it is generally written and pronounced: the plural is مَوَادُّ.

The radical substance of a word, the radical letters, collectively, of a word.]