Meaning of DENSITY in English

noun depth of shade.

2. density ·noun the quality of being dense, close, or thick; compactness;

— opposed to rarity.

3. density ·noun the ratio of mass, or quantity of matter, to bulk or volume, ·esp. as compared with the mass and volume of a portion of some substance used as a standard.

Webster English vocab.      Английский словарь Webster.