Online Google Dictionary

colloids 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˈkälˌoid/,
Font size:

colloids, plural;
  1. A homogeneous, noncrystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle and cannot be separated out by ordinary filtering or centrifuging like those in a suspension

  2. A substance of gelatinous consistency

  1. (colloid) a mixture with properties between those of a solution and fine suspension
  2. (colloidal) of or relating to or having the properties of a colloid
  3. A colloid is a substance microscopically dispersed evenly throughout another one.
  4. (colloid) A stable system of two phases, one of which is dispersed in the other in the form of very small droplets or particles; An intimate mixture of two substances one of which, called the dispersed phase (or colloid), is uniformly distributed in a finely divided state throughout the second ...
  5. (COLLOID) Very finely divided solid particles which will not settle out of a solution; intermediate between a true dissolved particle and a suspended solid which will settle out of solution. ...
  6. (colloid) a substance that is in a state of division preventing passage through a semipermeable membrane, consisting of particles ranging from 0.1 to 0.001 μm in diameter.
  7. (Colloid) A stable dispersion of fine particles in water that have a typical size less than 0.1 µm. Colloids containing iron, aluminum, silica and organics are commonly found in natural and potable waters.
  8. (colloid) A tiny particle that remains in suspension in a liquid.
  9. (Colloid) A stable system of small particles dispersed in something else. A multi-phase system in which one dimension of a dispersed phase is of colloidal size. Colloids are the liquid and solid forms of aerosols, foams, emulsions, and suspensions within the colloidal size class. ...
  10. A colloid, or colloidal dispersion, is a form of matter intermediate between a true solution (like salt dissolved in water) and a mixture or suspension (Italian salad dressing right after you shake it). Colloids have minute particles called micelles. See micelles. ...
  11. (COLLOID) a type of invasive cancer that grows into the normal tissue around it; it usually grows slowly
  12. (Colloid) A finely divided dispersion of one material in a second continuous phase (usually a liquid) in which the particles range in size from one nanometer to one micron. May be used for very fine polishing or as a feedstock for non-fused abrasive manufacture.
  13. (Colloid) A particle between several nm and several mm in size, such as polymer latex. Colloids play an important role in numerous products, including polishing slurries, glasses, paints, emulsions, and foods, for example.
  14. (Colloid) A type of solution in which the particles are not dissolved but are dispersed throughout the solvent or medium and held in suspension.
  15. (Colloid) Material, such as silicate cement or hydrocolloidal impression material, in which particles remain in uniform suspension.
  16. (Colloid) Particle, which may be a molecular aggregate, with a diameter of 0.1 to 0.001µm; clay and soil organic matter are often called soil colloids because they have particle sizes that are within, or approach, colloidal dimensions.
  17. (Colloid) Small particles (10-5 to 10-7 cm) in liquid which behave like a solution (no settling of particles).
  18. (Colloid) Suspended particles; partially soluble components the distribution of which between soluble and insoluble phases is dependent upon temperature and properties of the particle and the solution; colloidal particles tend to adhere to other substances also holding them in solution
  19. (Colloid) The gelatinous material made up primarily of thyroglobulin which is found in the follicles of the thyroid.
  20. (Colloid) or Colloidal suspension: an heterogeneous mixture where separation does not occur (or occurs at a negligible pace) due to gravity (e.g. milk).
  21. (colloid) A mixture made up of a liquid and pa ticles that (because of their large size) remain suspended in that liquid.
  22. (colloid) A mixture of very small particles, 1–1000 nm, suspended in another material. Milk is a colloid of fat in watery liquid.
  23. (colloid) A substance that contains components in different phases (e.g., minute solid particles within a liquid).
  24. (colloid) Particles suspended in a liquid, which are larger than molecular size but small enough to be moved about by molecular collisions. These particles do not settle under gravity. Their surface area is very large per gram, and the particles have a charge due to ions sorbed on the surface. ...
  25. (colloid) a material in which is suspended a constituent in a finely divided state that is invisible to the eye but capable of scattering light