Definition of "edit"

Roscoe wrote: The "hit" 45 version of "Bad Boy" was an edit of the 12" remix done by Shep Pettibone. I wasn't aware of Pablo Flores remixing this track. I do know that he did the 12" remix of "Conga". Actually, the 45 cannot be successfully extracted from the 12" version. I tried this, thinking that an edited needle drop of the 12" would make a better-sounding source than the 45. Unfortunately, some sections are unique to the 45.

After reading Roscoe's message, it made me wonder in which cases the word "edit" is exact by definition.

By his post, I understand that since the 45 cannot be recreated from the 12" then it's not an edit of it.

But I remember version names of many records I own where this wouldn't apply, for example the Madonna "Open Your Heart" promo 7" single. The A side contains the so called "Edit of Extended Version".

Now, this version cannot be recreated by shortening the 12" version either.

Was it then incorrectly named so?

Or does "edit" not necessarily imply just cut short in certain parts, and can involve some additional mixing?

Please let me know if I'm being unclear, I'm curious about this.

By our terminology here, the word "edit" should only be used when you can create the short version from the long version. However, when record labels label their singles and use words like "Edit", that's not always correct, and as Aaron points out, the word "remix" should be used. However, if the remixing is only slight, and the main purpose was to have a shorter version than what's on the LP or 12", they'd probably use the word "edit" just as a basic description.