apothecaries' measure

21 LETTERS · STARTS WITH A

apothecaries' measure is a valid 21-letter word worth 28 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1P3O1T1H4E1C3A1R1I1E1S1'0M3E1A1S1U1R1E1
1 + 3 + 1 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =28 PTS
DOUBLE WORD → 56TRIPLE WORD → 84
MEANING

What does apothecaries' measure mean?

1