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DENSITY
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The amount per unit size
Synonyms:
Classified under:
Nouns denoting attributes of people and objects
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
Synonyms:
compactness; concentration; denseness; density; tightness
Classified under:
Nouns denoting attributes of people and objects
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:
These proteins are involved in the structural integrity of high-density lipoprotein particles.
(Apolipoprotein A, NCI Thesaurus)
A measurement of the apolipoprotein B in the low density lipoproteins of a biological specimen.
(Apolipoprotein B Measurement, NCI Thesaurus/CDISC)
A measurement of the apolipoprotein A1 in the high density lipoproteins of a biological specimen.
(Apolipoprotein A1 Measurement, NCI Thesaurus/CDISC)
A bone mineral density (BMD) test is the best way to measure your bone health.
(Bone Density, NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases)
A rare autosomal dominant inherited disorder characterized by the presence of small areas of increased density throughout the bones.
(Osteopoikilosis, NCI Thesaurus)
Decreased calcification or density of bone tissue.
(Osteopenia, NCI Thesaurus)
A condition in which there is a lower-than-normal bone mass or bone mineral density (the amount of bone mineral contained in a certain amount of bone).
(Osteopenia, NCI Dictionary)
A condition that is marked by a decrease in bone mass and density, causing bones to become fragile.
(Osteoporosis, NCI Dictionary)
Risk factors include: • Getting older • Being small and thin • Having a family history of osteoporosis • Taking certain medicines • Being a white or Asian woman • Having osteopenia, which is low bone density
(Osteoporosis, NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases)
The concept also refers to the unit of mass density (volumic mass) defined as the density of a substance which mass equal to one picogram occupies the volume of one deciliter.
(Picogram per Deciliter, NCI Thesaurus)
