老茧 (lǎojiǎn): callus

Measure Word

一块老茧 kuài

Tā shǒu shàng zhǎng mǎn le lǎojiǎn, shì duō nián láodòng liú xià de hénjì.

His hands were covered in calluses, marks left by years of hard labor.

Jítāshǒu de zhǐjiān dōu mó chū le lǎojiǎn.

The guitarist's fingertips had all developed calluses.

memory

Think of 老茧 as skin that has 'grown old' (老) from repeated friction — just as repeated pressure turns fresh skin into something tough and weathered.

老 lǎo

茧 jiǎn