润滑

Traditional form:

潤滑

Pinyin (reading):

rùnhuá

Definitions:

• smooth
• oily
• sleek
• to lubricate

Characters:

• 润 - fresh, moist; soft, sleek
• 滑 - to slip, to slide; slippery, polished

Traditional characters:

• 潤 - fresh, moist; soft, sleek
• 滑 - to slip, to slide; slippery, polished