The words 'high density' work as adjective. For example: high-density urban population. In this example, the words high density act as adjective. They describe the noun population. High density used to describe something that has a high concentration. High denotes big, large or soaring or elevated. The word density means bulk of a substance. It refers to the concentration or the amount or quantity of something. Density could also mean mass, massiveness, solidity, thickness or tightness, heaviness, crowdedness and frequency.
Thus, in the above example: high density refers to the number of people in an area and indicates that the area holds large population. Another example: the tech-magazine had high density of expert Vocabulary. In this example: high density refers to the preponderance or high quantity of specific words relating to technology.
Thus, in the above example: high density refers to the number of people in an area and indicates that the area holds large population. Another example: the tech-magazine had high density of expert Vocabulary. In this example: high density refers to the preponderance or high quantity of specific words relating to technology.