[医] 合剂求值

Alligation \Al`li*ga"tion\, n. [L. alligatio.]
1. The act of tying together or attaching by some bond, or
the state of being attached. [R.]

2. (Arith.) A rule relating to the solution of questions
concerning the compounding or mixing of different
ingredients, or ingredients of different qualities or
values.

Note: The rule is named from the method of connecting
together the terms by certain ligature-like signs.
Alligation is of two kinds, medial and alternate;
medial teaching the method of finding the price or
quality of a mixture of several simple ingredients
whose prices and qualities are known; alternate,
teaching the amount of each of several simple
ingredients whose prices or qualities are known, which
will be required to make a mixture of given price or
quality.