English · Science & Technology
density
/ˈdɛn.sɪ.ti/
[/ˈdɛn.sɪ.ti/]
mass per volume
Advancednoun
Definition
How much mass is contained in a given volume of a substance.
Example
Because oil has a lower density than water, it floats on the surface instead of sinking.
Because oil has a lower density than water, it floats on the surface instead of sinking.
Etymology
From Latin 'densitas' (thickness), from 'densus' (thick, crowded).
How & Where It’s Used
Used in physics and chemistry, and figuratively for how crowded something is.