质量

Traditional form:

質量

Pinyin (reading):

zhìliàng

Definitions:

• (physics) mass
• quality (i.e. degree of excellence)
• quality and quantity

Characters:

• 质 - essence, nature; material, substance
• 量 - measure, volume; amount, quantity

Traditional characters:

• 質 - essence, nature; material, substance
• 量 - measure, volume; amount, quantity