碡 (zhóu): (in 碌碡) a stone roller for thre…

Meanings

农夫用碌碡压麦子脱粒。

Zhóu

The farmer used a stone roller to thresh the wheat.

碌碡是牛拉的沉重圆石滚子。

Liù zhóu

A stone roller is a heavy cylindrical stone pulled by an ox.

usage

碡 is a bound character used only in 碌碡, a heavy stone cylinder rolled over grain to thresh it or over ground to flatten it. A classic farmyard tool.

radical

石 shí

stone

The stone radical 石 fixes the meaning: this tool is a heavy cylinder cut from stone, rolled over grain or earth.

phonetic

毒 dú

poison

毒 supplies an approximate sound, read zhóu here. It functions purely as the phonetic element and carries no meaning in this farming term.

碡 zhóu