In medicine, the solid part of blood that separates out, or any thick or solid residue.
From Latin 'crassus' (thick, dense) and the suffix -ment indicating a substance or product. It describes the physical property of being thick.
Before we understood blood clotting and protein separation, doctors saw blood separate into thick and thin parts and needed a word for the gloppy stuff—'crassament' means 'the thick stuff.'
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