If you wanted to get really technical, the proper term is a Novelette. But the word count given is only for one award. Most publishers would likely consider that a short story (check every publishing opportunity to see their guidelines).
A writer is a world trapped in a person— Victor Hugo
Ink is blood. Paper is bandages. The wounded press books to their heart to know they're not alone.
That's how we should measure our lives. Not in distance traveled, or time passed, or worlds conquered, but in moments... and the rush of joy—of grace—that exists within them. — Megatron (Lost Light, by Roberts, Lawrence, Lafuente)