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colloid |
Also found in: Medical, Legal, Encyclopedia, Wikipedia, Hutchinson | 0.02 sec. |
colloid [ˈkɒlɔɪd] n 1. (Chemistry) Also called colloidal solution, 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. (Chemistry) the solid suspended phase in such a mixture 3. (Chemistry) Obsolete a substance that in solution does not penetrate a semipermeable membrane Compare crystalloid [2] 4. (Life Sciences & Allied Applications / Physiology) Physiol a gelatinous substance of the thyroid follicles that holds the hormonal secretions of the thyroid gland adj 1. (Medicine / Pathology) Pathol of or relating to the gluelike translucent material found in certain degenerating tissues 2. (Chemistry) of, denoting, or having the character of a colloid [from Greek kolla glue + -oid]
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| Captain Hodgson opens the great colloid underbody porthole through which I watch over-lighted London slide eastward as the gale gets hold of us. Lloyd's discovery of the "death bacillus" of the sea toad, and his experiments on it with potassium cyanide, sent his name and that of his university ringing round the world; nor was Paul a whit behind when he succeeded in producing laboratory colloids exhibiting amoeba-like activities, and when he cast new light upon the processes of fertilization through his startling experiments with simple sodium chlorides and magnesium solutions on low forms of marine life. |
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