n. | 1. | The quality of being dense, close, or thick; compactness; - opposed to |
2. | (Physics) 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. | |
3. | (Photog.) Depth of shade. |
Noun | 1. | density - the amount per unit size Synonyms: denseness |
2. | density - the spatial property of being crowded together |