a positively charged electrode by which electrons leave an electrical device
"In this lithium-ion battery, the anode is where the chemical reaction releases electrons to power your phone."
the negatively charged terminal of a voltaic cell or storage battery that supplies current
"When connecting the wires to rechargeable batteries, I made sure to attach the red cable to the anode since it is the negative terminal that sends power out."
An electrode, of a cell or other electrically polarized device, through which a positive current of electricity flows inwards (and thus, electrons flow outwards). It can have either a negative or a positive voltage.
"When the battery is being charged, the terminal labeled as the anode forces a positive current to flow inward while electrons are pushed outward into the circuit."