extensionform

noun
UK /ɪkˈstɛnʃən fɔːm/
US /ɪkˈstɛnʃən fɔːrm/

A longer version of something that adds extra parts to it.

The teacher gave us an extensionform of the story with more pages.


OTHER MEANINGS

2. A form you fill out to ask for more time to do something.

She handed in an extensionform to get extra days for her project.

3. A computer file type that adds a feature to a program.

The plugin uses an extensionform to add new tools to the app.

4. A stretched-out shape or structure.

The bridge had an extensionform that reached across the wide river.