noun
slip-on lid; lid that covers the edges
A lid that fits over the top of a container and extends down over the sides, as opposed to a lid that sits inside the rim.
この保存容器はかぶせ蓋になっていて、密閉性が高い。
This storage container has a slip-on lid and is highly airtight.
かぶせ蓋の箱は、ほこりが入りにくい。
Boxes with slip-on lids are less likely to let dust in.
Compound of 被せ (kabuse, 'covering') + 蓋 (futa, 'lid'). The reading かぶせぶた is a straightforward combination of the two parts.