Online Google Dictionary

selectivity 中文解釋 wordnet sense Collocation Usage
Noun
/səlekˈtivitē/,
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The quality of carefully choosing someone or something as the best or most suitable,
  1. The quality of carefully choosing someone or something as the best or most suitable
    • - provision is organized on the principle of selectivity
  2. The property of affecting some things and not others

  3. The ability of a device to respond to a particular frequency without interference from others


  1. the property of being selective
  2. (selective) tending to select; characterized by careful choice; "an exceptionally quick and selective reader"- John Mason Brown
  3. Functional selectivity (or “agonist trafficking”, “biased agonism”, “differential engagement” and “protean agonism”) is the ligand-dependent selectivity for certain signal transduction pathways in one and the same receptor. ...
  4. Selectivity is a measure of the performance of a radio receiver to respond only to the radio signal it is tuned to (such as a radio station) and reject other signals nearby in frequency, such as another broadcast on an adjacent channel.
  5. Binding selectivity refers to the differing affinities with which different ligands bind to a substrate forming a complex. A selectivity coefficient is the equilibrium constant for the reaction of displacement by one ligand of another ligand in a complex with the substrate. ...
  6. A measure of how selective something is; discrimination; The ability of a radio receiver to separate a desired signal frequency from others
  7. (selective) Of or pertaining to the process of selection; Choosy, fussy or discriminating when selecting; Having the authority or capability to make a selection
  8. (Selective) Applied to a trade policy, this means one that affects only some countries, not all, in contrast to MFN policy. Selectivity is an important concern in the use of safeguards, which countries often would prefer to make selective but are required by GATT Article XIX to be nondiscriminatory.
  9. (Selective) A course or rotation which is chosen from a list of options. Different from an elective, the choice here is not limitless.
  10. (Selective) The resource includes only selected items in the category for which the resource was created, with the process or basis for the selection as indicated.
  11. (Selective) The term usually applied to an herbicide that has the ability to only destroy one type of plant while not affecting others. For example, a postemergence, broadleaf herbicide will kill broadleaf plants (such as dandelions) in the lawn without affecting the grass plants.
  12. (Selective) cells (Sectored cells) – covers 120 degrees (rather than 360 degree) As by the name, used to restrict the transmitted signal with in a particular area.
  13. (Selective) mating can be the result of, for example, a change in the physical environment (physical isolation by an extrinsic barrier), or by sexual selection resulting in assortative mating.
  14. (Selective) mutism is not diagnosed if the individual s failure to speak is due solely to lack of knowledge of the language.
  15. The tendency of an ion exchanger to "prefer" (have more attraction for) certain kinds of ions over others, as if the resin were ranking the types of ions in order to be removed; most preferred ion, second most preferred, etc..
  16. The ability of a receiver to reject interfering signals close to the desired carrier frequency.
  17. Many reactions can potentially occur in any real catalyst systems. Selectivity is the measure of the ability of the catalyst to promote desired reactions without affecting those that are not desired.
  18. U.S. Customs' entry screening mechanism. Criteria can include information concerning the importer, filer (broker), manufacturer, country, or Harmonized Tariff Schedule (HTS) code.
  19. the relationship between the affinity of a compound for a particular receptor and its affinity for other types of opioid receptor. ...
  20. Eligibility criteria for recipient of social benefits or services that target a particular group and usually include means-testing.
  21. The difference in attraction of one ion over another by an ion exchange resin
  22. The tendency for a manipulation to lead to one outcome. Perfect selectivity is sometimes referred to as “specificity.”
  23. is the filtering of incoming information from the outside world, recognizing and interpreting the meaning and consequences of incoming signals.
  24. The ability of a drug to affect one type of cell over others.
  25. the difference in removal rate between two material during an etching or CMP process.