原子钟

Traditional form:

原子鐘

Pinyin (reading):

yuánzǐzhōng

Definitions:

• atomic clock

Characters:

• 原 - source, origin, beginning
• 子 - son, child; seed, egg; fruit; small thing
• 钟 - clock; bell

Traditional characters:

• 原 - source, origin, beginning
• 子 - son, child; seed, egg; fruit; small thing
• 鐘 - clock; bell