reference electrode

19 LETTERS · STARTS WITH R

reference electrode is a valid 19-letter word worth 26 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1E1F4E1R1E1N1C3E1E1L1E1C3T1R1O1D2E1

1 + 1 + 4 + 1 + 1 + 1 + 1 + 3 + 1 + 0 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 2 + 1 =26 PTS

DOUBLE WORD → 52TRIPLE WORD → 78

MEANING

What does reference electrode mean?