“In the strictest definition of the term, a fountain pen is a writing-instrument which contains its own ink-suppy and delivery-system, which applies the ink to the page via a metal pen-point.
Using this definition, almost any pen in the world could be a fountain pen, yes, including that 20c Bic Cristal on your desk.
But the term ‘fountain pen’ as most people would recognise it, refers to a writing-instrument which uses water-based ink to put marks on paper, via a symmetrical, curved and tapering metal pen-point, made of either gold or steel. If this is what you have in front of you, or within your immediate neighbourhood, read on.”
Source: scheong.wordpress.com