What is Vape juice, eLiquid or eJuice?

What is Vape juice, eLiquid or eJuice?
What's in a name? Vape juice, eliquid or ejuice- what do you call it? Back in 2011 or so, the industry term for the liquid intended to help adults find a better method of nicotine delivery was "eLiquid" or "eJuice".