(physics) The amount of electric charge per unit volume of space, unit area of a surface, or unit length of a curve.

plural of probability density function

(physics) A standing wave of electrons confined, typically, within the layers of a crystal

Synonym of bone density

Any of a class of lipoproteins that transport cholesterol around the bloodstream; high levels may increase the risk of coronary heart disease.

Any of a class of lipoproteins that transport cholesterol to the liver from other tissue; high levels may decrease the risk of coronary heart disease.

(physics) The low-energy, ground state of a metal in which densities of the electron spins and charges follow a regular spatial distribution

(probability theory) Any function whose integral over a set gives the probability that a random variable has a value in that set

(physics) The measurable component of the response of a medium to the presence of a magnetic field.

plural of spin-density wave