It's all been said before but -
The problem is that some people will only accept that a {whatever}, where {whatever} is an ordinary word which itself means something, can only be use for the first device which was manufactured to achieve the desired result.
That is {transformer} (word meaning 'that which transforms' - which simply means 'changes') can only be the original Victorian lump of metal and not a modern device which achieves the same result.
It is the same as saying a cooker can only be a device manufactured from cast iron which cooks by burning wood and a modern electric - and electronic - one which does the same is not a cooker, even though it cooks.
Also, a printer can only be a man who sets type and the modern electronic device is not a printer, even though it prints.
Simply - anything which {verb} is a {verb}er; anything which transforms IS a transformer.
The problem is that some people will only accept that a {whatever}, where {whatever} is an ordinary word which itself means something, can only be use for the first device which was manufactured to achieve the desired result.
That is {transformer} (word meaning 'that which transforms' - which simply means 'changes') can only be the original Victorian lump of metal and not a modern device which achieves the same result.
It is the same as saying a cooker can only be a device manufactured from cast iron which cooks by burning wood and a modern electric - and electronic - one which does the same is not a cooker, even though it cooks.
Also, a printer can only be a man who sets type and the modern electronic device is not a printer, even though it prints.
Simply - anything which {verb} is a {verb}er; anything which transforms IS a transformer.