مصخ

أُمْصُوخَةٌ ذ A sheath or coat, of a plant, enveloping, or surrounding, another sheath or coat, and the latter another, and so on: (T, L:) a خَوصَة of the kind of plant called ثُمَام, (S, K,) and of that called نَصِىّ; (S;) what is plucked from the نصىّ, like a rod; (AHn;) [i. e., a sheath of the ثمام or the نصىّ;] there is a species of the ثمام having no leaves properly so called, its leaves being sheaths (أَنَابِيب) set one into another, each sheath (أُنْبُوبَة) of which is called امصوخة, and when it is pulled away it comes forth from the inside of another, as though it were a stopper taken out from a vessel in which collyrium (كُحْل) is kept: (Lth:) pl. أُمْصُوخٌ and أَمَاصِيخُ: (S, K:) the former is a lexicological pl., [or rather a coll. gen. n., of which امصوخة is the n. un.,] and the latter is the proper pl. (TA.) ― -b2- Also, The white pith of the بَرْدِىّ. (AHn.)