alligation

noun
al·​li·​ga·​tion | \ ˌal-ə-ˈgā-shən How to pronounce alligation (audio) \

Medical Definition of alligation

: a process or rule for the solution of problems concerning the compounding or mixing of ingredients differing in price or quality:
a : one applied when a definite mixture is required

called also alligation alternate

b : one applied when the price or quality of the mixture is to be determined

called also alligation medial

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a strong desire or propensity

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