noun
Rare term for a pestle, especially a wooden one used with a mortar (すり鉢). More commonly called すりこ木.
See also: すりこ木
祖母は当たり木ですり鉢でごまをするのが好きだ。
My grandmother likes to grind sesame seeds with a pestle in a mortar.
The common word for a wooden pestle used with a Japanese mortar (すり鉢). 当たり木 is a rare synonym.
Compound of 当たり (atari, 'hitting') + 木 (ki, 'wood'), literally 'hitting wood'. The exact derivation is uncertain, but it likely refers to the action of pounding or grinding with a wooden tool.