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colloid Definition

col·loid (kälo̵id′)

noun

    1. a solid, liquid, or gaseous substance made up of very small, insoluble particles (as single large molecules or masses of smaller molecules) that remain in suspension in a surrounding solid, liquid, or gaseous medium of different matter
    2. a state of matter consisting of such a substance dispersed in a surrounding medium: all living matter contains colloidal material, and a colloid has only a negligible effect on the freezing point, boiling point, or vapor pressure of the surrounding medium
  1. the iodine-containing, gelatinous protein stored in the thyroid

Etymology: < Gr kolla, glue + -oid; coined by T. Graham (1805-69), Scot chemist

colloid Usage Examples

Converse of object

  • use: However, whatever the application, the quality of the gold colloid used is instrumental in the final success of the project.
  • color: However, they need different chemical reaction conditions to synthesize different colored metal colloids.
  • include: This may include a colloid to rapidly expand the circulating volume but what the patient really needs is crystalloids with a high sodium content.
  • drive: Laning in oppositely driven colloids We study the formation of lanes of oppositely driven colloids.
  • contain: Fresh Start rapidly removes these toxic chemicals and minerals and contains a natural colloid which coats the fish with a protective barrier.
  • form: Methylcellulose, which forms a semi-synthetic hydrophilic colloid, has a similar action.

Adjective modifier

  • aquatic: This is being organized through his NERC Knowledge Transfer Network on natural aquatic colloids.
  • natural: This is being organized through his NERC Knowledge Transfer Network on natural aquatic colloids.
  • true: In a true colloid, the particles range in size from about 0.01 to 0.001 of a micron in diameter.

Modifies a noun

  • chemistry: In J. Alexander ( ed. ), Colloid chemistry.
  • particle: This presentation will deal with a recently developed process for the surface engineering of colloid particles.
  • science: Progress in nanotechnology and colloid science may now enable sufficient performance to be obtained.
  • solution: Colloid solutions have been reported to be responsible in many settings.
  • pressure: This fluid movement is controlled by the capillary blood pressure, the interstitial fluid pressure and the colloid osmotic pressure of the plasma.
  • therapy: Standard ICU care with no extra diuretic or colloid therapy permitted.

Noun used with modifier

  • polymer: Throughout his time at Surrey he has carried out research on soft matter, with special interest in polymer colloids.
  • metal: When a solution of the sample molecule is mixed with a metal colloid the molecules are absorbed onto the surface of the colloids.
  • silver: Raman spectra from a black ink before and after treatment with silver colloid.
  • sulfur: INTERVENTIONS: Unfiltered technetium Tc 99m sulfur colloid injections of the primary tumor and lymphoscintigraphy were performed on the day before surgery.
  • soil: Animations are used to illustrate the procedures in measuring cation exchange properties of soil colloids, in the Nutrient Cycling chapter of Oz Soils.

Browse dictionary entries near colloid

  1. collogue
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  3. collocation
  4. collocate
  5. collision domain
  6. collision
  7. collinsia
  8. Collins
  9. collinear
  10. collimator
  1. colloidal
  2. collop
  3. colloq
  4. colloquial
  5. colloquialism
  6. colloquist
  7. colloquium
  8. colloquy
  9. collotype
  10. collude