Terminology question: Faster lens?

[Reminisce]

Greetings!

Ok I have a fairly simple question, but the definition isnt something I can pinpoint. What doe people mean when they say a "fast" lens, i.e. one that has a wider aperture? I understand that they mean a fast lens is one with a respectable aperture (for example, 2.8 is faster than 4.5, etc), but why is the term "faster" used to define these lenses?

this is my interpretation, but Im sure I am wrong so this is why I am asking you guys who know more than I do. Is it because a lens that has a max of a 2.8 aperture will allow for faster shutter speeds in the same light than a lens with a max aperture of 3.5?

Thanks in advance folks :)

[timmyquest]

I'd guess you are correct. Faster film relates to higher ISO which allows faster shutter speeds. I would think the same applies.

[CyberDyneSystems]

Yep.. that's the root of the term. Faster shutter speeds possible with "faster" aperture.

[ron chappel]

Yes,that's what it means.It does sound very stupid at first but kinda makes sense.
One of those slang terms that we're stuck with it seems :(

[Morden]

Indeed. "Faster" lenses have larger maximum apertures, which let in more light, which results in "faster" (shorter) exposures.