Word: 密度 (mìdù) 密度 dictionary entry mìdù density Full dictionary entry for 密度 Example sentences using 密度 2 sentences, showing page 1 of 1. 水的密度比油大。 Shuǐ de mìdù bǐ yóu dà. Water is denser than oil. 空气的密度是多少？ Kōngqì de mìdù shì duōshǎo? What is the density of air?