Online Google Dictionary

density 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˈdensitē/,
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densities, plural;
  1. The degree of compactness of a substance
    • - a reduction in bone density
  2. 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
    • - chip density doubles every eighteen months
    • - a low-density 5.25-inch floppy disk
    • - a drive capable of handling high-density 1.44 megabyte disks
  3. Degree of consistency measured by the quantity of mass per unit volume

  4. The opacity of a photographic image

  5. The quantity of people or things in a given area or space
    • - areas of low population density
    • - a density of 10,000 per square mile
  1. the amount per unit size
  2. concentration: the spatial property of being crowded together
  3. (dense) permitting little if any light to pass through because of denseness of matter; "dense smoke"; "heavy fog"; "impenetrable gloom"
  4. (dense) having high relative density or specific gravity; "dense as lead"
  5. (dense) slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; " ...
  6. The density of a material is defined as its mass per unit volume. The symbol of density is ρ (the Greek letter rho). The density of a substance is the reciprocal of its specific volume, a representation commonly used in thermodynamics. Density is an intensive property.
  7. (Dense (film)) Dense is a 2004 35 minute made for TV film directed and written by Vanessa Williams (story) with Shari Poindexter which aired on Showtime and which is currently playing in film festivals around the country. , accessed 01-04-2009
  8. (Dense (topology)) In topology and related areas of mathematics, a subset A of a topological space X is called dense (in X) if any point x in X either belongs to A, or is a limit point of A.
  9. A measure of the amount of matter contained by a given volume; The ratio of one quantity to that of another quantity; The probability that an event will occur, as a function of some observed variable
  10. (dense) Having relatively high density; Compact; crowded together; Thick; difficult to penetrate; Opaque; allowing little light to pass through; Obscure, or difficult to understand; Of a person, slow to comprehend; of low intelligence
  11. (Dense) Describes a wine that has concentrated aromas on the nose and palate. A good sign in young wines.
  12. (dense) closely packed together
  13. (Dense) "Refers to the texture of beer, which is super important. Some beers are really viscous and thick, while others are airy and lightweight."
  14. (Dense) A reference to the specific gravity of wood. Lumber classified as "dense" has six or more annual rings per inch, plus one third or more summer wood, measured at either end. Pieces averaging less than six rings per inch also qualify if the rings average one half or more summer wood.
  15. (Dense) Compact, fine-grained, lacking pore space. A rock or mineral with a high specific gravity.
  16. (Dense) Compact, solid and heavy, the opposite of soft.
  17. (Dense) The majority, or significant minority (at least ten percent), of potential data cells actually occupied in a multidimensional structure.
  18. (Dense) Thick plush hair coat
  19. (Dense) solid color and/or densely packed with flavor, usually positive
  20. (dense (n)) movements and steps in time with music; Exams sometimes take place in dense-halls.
  21. (dense) (2h)[C], POs ><, FOs away, are brought together suddenly and with pc.
  22. (dense) Adjective.  Thick or crowded and hard to pass through.
  23. A dense set is a set whose closure is the whole space.
  24. The degree of tone, weight of darkness or color within a photo or reproduction; measurable by the densitometer. Reference, densitometer.
  25. The mass of substance in a unit volume. When expressed in the metric system, it is numerically equal to the specific gravity of the same substance.