What is the correct name for the style of sword the Uruk Hai use?

What is the correct name for the style of sword the Uruk Hai use?

I specifically mean the flat blade which either does not taper, or tapers slightly outwards as it gets further from the grip, with no hand guard, and with the perpendicular hook or spike on the opposite side as the cutting edge, like this:

I have seen these called "scimitars" on some reproduction websites, but Wikipedia says a scimitar is a curved, single-sided, blade with a hand guard.

I have seen swords called "hook swords" but these are double-edged and fully curve around so the top of the blade looks like a U.

I have seen reference to a blade with a "gut hook" but these seem to be small hand knives which look like a bottle opener at the end, you'd probably use them for fishing or small game.

The closest I could find is a "bill hook machete" but the hook is on the cutting edge, not on the reverse side.

Or is this just an imaginary style of sword either invented in Middle Earth or used by Peter Jackson because it looks cool?