click-ontop
nounUK /ˈklɪk ɒn tɒp/
US /ˈklɪk ɑːn tɑːp/
A click-ontop is a small thing you press onto something else to make it work.
She put a click-ontop on the pen so it would write again.
RELATED WORDS
OTHER MEANINGS
2. A small part that you push onto the end of a tool or object.
He lost the click-ontop for his marker.
3. Something added on top of a page or screen that you can click.
The website has a click-ontop banner at the top.
4. A lid or cover that clicks into place on a container.
Put the click-ontop back on the bottle so it stays fresh.