Power source
'power source' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for battery that I've seen before include "Storage cell" , "Means of storing electric current" , "violent offence" , "Group of cells (or guns)" , "criminal offence" .)
'power source' is the definition.
(I know that power source can be written as generator)
This is the entire clue.
(Other definitions for generator that I've seen before include "Engine to produce electricity" , "juice maker" , "Eg, dynamo" , "Power source" , "Existing in name only" .)
'power source' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for atom that I've seen before include "It was once thought to be smallest particle of matter" , "Smallest particle in an element able to take part in a chemical reaction" , "Tiny particle, great bomb" , "A tiny particle of matter with a big bang" , "little amount" .)
'power source' is the definition.
(I know that solar cell is a type of power source)
This is the entire clue.
(Other definitions for solar cell that I've seen before include "source of power" , "Device converting sunlight to power" , "Producer of electricity from sunlight" , "Converter of sunlight to electric power" , "source of electricity" .)