مَشْحَذَةٌ
[A cause, or means, of sharpening: a word of the class of مَجْبَنَةٌ &c.]. One says, هٰذَاكَلَامٌ مَشْحَذَةٌ لِلْفَهْمِ [This is discourse that is a cause, or means, of sharpening of the understanding].
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