Yes, anode is in the scrabble dictionary

Anode Definition

noun

A positively charged electrode, as of an electrolytic cell, storage battery, or electron tube.

The negatively charged terminal of a primary cell or of a storage battery that is supplying current.

the electrode of an electrochemical cell at which oxidation occurs as.

The positive terminal of an electrolytic cell.

The negative terminal of a galvanic cell .