electrical conduction

NOUN
21 LETTERS · STARTS WITH E

electrical conduction is a valid 21-letter word worth 29 points in Scrabble and 38 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
E1L1E1C3T1R1I1C3A1L1C3O1N1D2U1C3T1I1O1N1
1 + 1 + 1 + 3 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 =29 PTS
DOUBLE WORD → 58TRIPLE WORD → 87
MEANING

What does electrical conduction mean?