end grain; cut end; cross section
Refers to the surface exposed when wood is cut across the grain, showing the tree rings. Used in woodworking and carpentry contexts.
木口にやすりをかけて滑らかにする。
Sand the end grain to make it smooth.
このテーブルの木口はきれいな年輪が見える。
You can see beautiful tree rings on the cut end of this table.
Standard kanji spelling for the end grain or cut end of wood.
Compound of 木 (ki, 'tree, wood') and 口 (kuchi, 'mouth, opening'), literally 'wood mouth', referring to the exposed end of a piece of wood.