law of reciprocal proportions

NOUN
29 LETTERS · STARTS WITH L

law of reciprocal proportions is a valid 29-letter word worth 42 points in Scrabble and 50 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1A1W4O1F4R1E1C3I1P3R1O1C3A1L1P3R1O1P3O1R1T1I1O1N1S1
1 + 1 + 4 + 0 + 1 + 4 + 0 + 1 + 1 + 3 + 1 + 3 + 1 + 1 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =42 PTS
DOUBLE WORD → 84TRIPLE WORD → 126
MEANING

What does law of reciprocal proportions mean?

NOUN · 1 SENSE
1

(chemistry) law stating that the proportions in which two elements separately combine with a third element are also the proportions in which they combine together.