Brazil nut

US /brəˈzɪl nʌt/
UK /brəˈzɪl nʌt/
"Brazil nut" picture
1.

the large, three-sided, edible seed of a South American forest tree, growing in a hard shell in clusters of 12–24.

:
She cracked open a Brazil nut and ate the creamy kernel.
Brazil nuts are a good source of selenium.