seashellbutton
nounUK /ˈsiːʃelˌbʌtən/
US /ˈsiːʃelˌbʌtən/
A seashellbutton is a small button made from a seashell.
She sewed a shiny seashellbutton onto her beach bag.
OTHER MEANINGS
2. A decorative button shaped like a seashell.
The cardigan had tiny seashellbuttons down the front.
3. A small round shell piece used like a button in jewelry making.
He strung a seashellbutton onto a bracelet.
4. A button cut from the shell of a sea creature.
The old coat was fastened with a single seashellbutton.