|1.||colloidal solution, Also called: colloidal suspension a mixture having particles of one component, with diameters between 10--7 and 10--9 metres, suspended in a continuous phase of another component. The mixture has properties between those of a solution and a fine suspension|
|2.||the solid suspended phase in such a mixture|
|3.||obsolete Compare crystalloid a substance that in solution does not penetrate a semipermeable membrane|
|4.||physiol a gelatinous substance of the thyroid follicles that holds the hormonal secretions of the thyroid gland|
|5.||pathol of or relating to the gluelike translucent material found in certain degenerating tissues|
|6.||of, denoting, or having the character of a colloid|
|[C19: from Greek kolla glue + |
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|the offspring of a zebra and a donkey.|
colloid col·loid (kŏl'oid')
A suspension of finely divided particles in a continuous medium from which the particles do not settle out rapidly and are not readily filtered.
The particulate matter so suspended.
The gelatinous stored secretion of the thyroid gland, consisting mainly of thyroglobulin.
Gelatinous material resulting from colloid degeneration in diseased tissue. Also called colloidin.
|colloid (kŏl'oid') Pronunciation Key
A mixture in which very small particles of one substance are distributed evenly throughout another substance. The particles are generally larger than those in a solution, and smaller than those in a suspension. Paints, milk, and fog are colloids. Compare solution, suspension.
A substance made up of particles that are larger than most molecules; these particles do not actually dissolve in substances but stay suspended in them.
Note: Fog, paints, and foam rubber are colloids.