DENSITY

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does density mean? 

• DENSITY (noun)
  The noun DENSITY has 2 senses:

1. the amount per unit size

2. the spatial property of being crowded together

  Familiarity information: DENSITY used as a noun is rare.

 Dictionary entry details 

• DENSITY (noun)

Sense 1

Meaning:

The amount per unit size

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

denseness; density

Hypernyms ("density" is a kind of...):

compactness (the consistency of a compact solid)

Hyponyms (each of the following is a kind of "density"):

bits per inch; bpi (a measure of how densely information is packed on a storage medium)

flux; flux density ((physics) the number of changes in energy flow across a given surface per unit area)

absorbance; optical density; photographic density; transmission density ((physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation)

low density; rarity; tenuity (a rarified quality)

relative density (the ratio of the density of something to the density of a standard)

Derivation:

dense (having high relative density or specific gravity)

dense (permitting little if any light to pass through because of denseness of matter)

Sense 2

Meaning:

The spatial property of being crowded together

Classified under:

Nouns denoting attributes of people and objects

Synonyms:

compactness; concentration; denseness; density; tightness

Hypernyms ("density" is a kind of...):

spacing; spatial arrangement (the property possessed by an array of things that have space between them)

Derivation:

dense (hard to pass through because of dense growth)

 Context examples 

It is used to diagnose osteoporosis (decrease in bone mass and density).

(BMD scan, NCI Dictionary)

Also called bone density, bone mass, and bone mineral density.

(BMD, NCI Dictionary)

A quantity used in tracer studies of receptor density in certain biological processes where this binding potential is proportional to the receptor density.

(Binding Potential, NCI Thesaurus)

It plays a role in the negative regulation of bone density.

(BMP3 Gene, NCI Thesaurus)

Low bone density can occur in patients treated for cancer.

(Bone Density, NCI Dictionary)

Bezafibrate decreases triglyceride levels, increases high density lipoprotein (HDL) cholesterol levels, and decreases total and low density lipoprotein (LDL) cholesterol levels.

(Bezafibrate, NCI Thesaurus)

The atomic positions are accurately defined and fine details in the electron density become visible, which reveal small but significant structural changes.

(Atomic Resolution X-Ray Crystallography, NCI Thesaurus)

A SI derived unit used for linear electric current density, magnetic field strength, and magnetization.

(Ampere per Meter, NCI Thesaurus)

A disorder characterized by a decrease in density of hair compared to normal for a given individual at a given age and body location.

(Alopecia, NCI Thesaurus/CTCAE)

Near the horizon the sun was smouldering dimly, almost obscured by formless mists and vapors, which gave an impression of mass and density without outline or tangibility.

(Love of Life and Other Stories, by Jack London)