The degree of compactness of a substance
A measure of the amount of information on a storage medium (tape or disk). For magnetic tape it is the amount of information recorded per unit length of tape (bits per inch or millimeter); for a disk, a fixed number of bits per sector, sectors per track, and tracks per disk
a loss of bone density
Having a low concentration
The amount of data that can be stored per unit length or area of a storage medium.
The magnitude of a magnetic, electric, or other flux passing through a unit area
Denoting a substance with a high degree of compactness
Excessive or undesirable density (especially of population).
The power produced per unit volume of a reactor core.
The frequency of occurrence of stars, particles, or other heavenly bodies, per specified volume of space
The density of a particular gas or vapor relative to that of hydrogen at the same pressure and temperature
The electric charge per unit area of a surface, or per unit volume of a field or body
The amount of electric current flowing per unit cross-sectional area of a material
(Of a disk) able to store twice as much information as other, older disks of the same physical size
Designating a filter that absorbs light of all wavelengths to the same extent and so causes no change in its colour.
The degree to which a refractive medium retards transmitted rays of light
A density derived from the Planck mass and the Planck length, of the order of 1093 gram cm−3.
Density at a surface; (Physics) the density of energy states at the surface of a solid.
Short for probability density function.
The quantity of electric charge per unit area (or per unit length or unit volume).
The number of electrons per unit volume; (Chemistry) the quantum-mechanical probability that an electron will be found at a given point in an atom, molecule, etc.
Another term for specific gravity.
A probability distribution that is a continuous function.
A lipoprotein that removes cholesterol from the blood and is associated with a reduced risk of atherosclerosis and heart disease
The form of lipoprotein in which cholesterol is transported in the blood
A photographic or optical filter that absorbs light of all wavelengths to the same extent, causing overall dimming but no change in color
A type of board made from compressed sawdust usually bonded with formaldehyde resin, used in furniture-making as a wood substitute; compare chip-board; abbreviated MDF.
A function of a continuous random variable, whose integral across an interval gives the probability that the value of the variable lies within the same interval