throughstone

(construction) A bondstone. / A gravestone made so as to lie flat.

Japanese Meaning

結合石（構造物を連結するための石） / 平たく配置される墓石

The mason set a throughstone at the corner to tie the two walls together.

石工は角に通し石を据えて、二つの壁をつなげた。

Sense（1）

(construction) A bondstone.

Sense（2）

A gravestone made so as to lie flat.

throughstones

（ plural ）