生物钟

Traditional form:

生物鐘

Pinyin (reading):

shēngwùzhōng

Definitions:

• biological clock

Characters:

• 生 - life, lifetime; birth; growth
• 物 - thing, substance, matter; creature
• 钟 - clock; bell

Traditional characters:

• 生 - life, lifetime; birth; growth
• 物 - thing, substance, matter; creature
• 鐘 - clock; bell