>>4332574>>4332576there was no full frame until digital, it's just a buzzword since producing the first consumer sensor similar in size to 135 was a big deal, it literally means "the whole 35mm nigger". 35mm film is "standard" and is a family of formats, e.g. cut in half you get APS, 16mm and super 16, uncut its 135, a myriad of panoramic formats and super 35. medium format comes from the film being somewhere between standard 35 derivatives and large format sheet films, simple as.
