push-oncap
nounUK /ˈpʊʃ ɒn kæp/
US /ˈpʊʃ ɑːn kæp/
A cap you push onto something to close it.
He pushed the push-oncap onto the bottle to keep the juice fresh.
RELATED WORDS
OTHER MEANINGS
2. A small cover that snaps onto a tube or pipe to seal it.
The plumber fitted a push-oncap to the end of the pipe.
3. A protective cover that presses onto a pen or marker tip.
She lost the push-oncap of her favorite marker.
4. A decorative cap that fits over a post or pole by pressing down.
The fence posts had shiny push-oncaps on top.