桡骨 (ráogǔ): radius (anatomy)

Meanings

Tā shuāidǎo shí ráogǔ gǔzhé le.

He fractured his radius when he fell.

Ráogǔ zài qiánbì de mǔzhǐ yī cè.

The radius is on the thumb side of the forearm.

usage

Pairs with 尺骨 (chǐgǔ, ulna) as the two long bones of the forearm. 桡 originally means 'oar' — picture the bone as an oar that 'rotates' the hand.

桡 ráo

骨 gǔ