dens·ityBrE/ˈdensəti/NAmE/ˈdensəti/noun (dens·ities) [U]thequalityofbeingdense; the degree to which sth is dense密集;稠密;密度;浓度◆populationdensity人口密度◆lowdensityforest低密度森林[C, U](physics物理) thethicknessofasolid, liquidorgasmeasuredbyitsmassperunitofvolume密度(固体、液体或气体单位体积的质量)◆thedensityofagas一种气体的密度[U](computing计算机) theamountofspaceavailableonadiskforrecordingdata密度(磁盘存储数据的可用空间)