Density (Def 1)
Chemistry
The mass of a substance per unit volume
Density (Def 2)
Construction
Rules Methods that estimate the den- sity of wood based on the amount of summer- ship.wood and its rate of growth. areal measure, e.g., persons per acre, families per
Density (Def 3)
Phy Properties
The mass per unit volume of a material
Density (Def 4)
Physics
The mass of an object per unit volume.