1 [U] quality of being dense(1b, 2) 浓度; 密度
*the density of a forest, the fog, etc 森林的密度、雾的浓度.
2 [C, U] (physics 物) relation of mass to volume 密度（质量与体积的关系）.
the degree to which an area is filled with people or thingsdensity of the size and density of settlements areas of high population densitytechnical
the relationship between the mass
of something and its size
1. The city is famous for its density of population. 这座城市因人口稠密而闻名。
2. There is a greater density of household goods. 家用商品的密度更大了，
3. "In contrast, the animals that exercised inside the automatic wheel possessed a greater density of blood vessels in the brain than did either of the other two groups of animals." "相比之下，在自动轮中跑动的老鼠，较之其他两组的老鼠，其大脑的血管密度更大。"