colloid

Definitions

  • WordNet 3.6
    • n colloid a mixture with properties between those of a solution and fine suspension
    • ***
Webster's Revised Unabridged Dictionary
    • Colloid (Med) A gelatinous substance found in colloid degeneration and colloid cancer.
    • Colloid (Physiol. Chem) A substance (as albumin, gum, gelatin, etc.) which is of a gelatinous rather than a crystalline nature, and which diffuses itself through animal membranes or vegetable parchment more slowly than crystalloids do; -- opposed to crystalloid.
    • a Colloid Resembling glue or jelly; characterized by a jellylike appearance; gelatinous; as, colloid tumors.
    • ***
Century Dictionary and Cyclopedia
    • colloid Like glue or jelly. Specifically— In chem., semi-solid, penetrable, slowly diffusible, and non-crystalline. See II.
    • colloid In geology, partly amorphous: applied to minerals.
    • n colloid A substance in a peculiar state of aggregation characterized by slow diffusibility, permeability by crystalloid solutions, etc. See extract.
    • ***
Chambers's Twentieth Century Dictionary
    • n Colloid kol′oid a name given by Graham, in contradistinction to crystalloids, to any soluble substance, which, when exposed to dialysis, does not pass through the porous membrane
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Gr. ko`lla glue + -oid,. Cf. Collodion
Chambers's Twentieth Century Dictionary
Gr. kolla, glue, and eidos, form.

Usage

In literature:

Did you ever realize that practically all industrial chemistry is colloidal in its nature?
"Edison, His Life and Inventions" by Frank Lewis Dyer and Thomas Commerford Martin
Captain Purnall wrenches open the colloid to talk with him man to man.
"Actions and Reactions" by Rudyard Kipling
DIALYSIS, the process of separating the crystalloid or poisonous ingredients in a substance from the colloid or harmless ingredients.
"The Nuttall Encyclopaedia" by Edited by Rev. James Wood
From the experiments of G. Bredig it seems that colloidal solutions of a metal act like the metal itself.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1" by Various
A machine can reason logically, better than a colloid brain.
"Where the World is Quiet" by Henry Kuttner
The styptic colloid of Richardson is a strong solution of tannin in gun-cotton collodion.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6" by Various
Many colloidal solutions of copper have been obtained.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3" by Various
Like all colloidal substances it is an exceedingly bad conductor of heat.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 4" by Various
Barley water has something of a colloidal action upon the casein, causing the curds to be finer and less tough in character.
"Dietetics for Nurses" by Fairfax T. Proudfit
This is undoubtedly a colloidal suspension of the starch in water.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
***

In news:

Colloides Naturels International (CNI) has received regulatory approvals for its Fibregum product line of all natural, soluble dietary fiber based on acacia gum.
American Colloid to Build Blending Plant.
Does colloidal silver boost immunity or overall health.
Linearly Polarized Emission from Colloidal Semiconductor Quantum Rods Jiangtao Hu, Liang-shi Li, Weidong Yang, Libero Manna, Lin-wang Wang, A Paul Alivisatos.
Eka Chemicals celebrates the start-up of its new colloidal silica plant in Guangdong, China.
Eka Chemicals on Friday celebrated the start-up of its new production plant for colloidal silica at the company's Guangzhou site in Guangdong province, southern China.
Organic Colloidal Oatmeal and Oat Flour.
Recently issued a patent are core/shell particles with a core of a porous polymer and a shell of an inorganic colloid.
Eka Chemicals celebrates the start-up of its new colloidal silica plant in Guangdong, China.
Eka Chemicals on Friday celebrated the start-up of its new production plant for colloidal silica at the company's Guangzhou site in Guangdong province, southern China.
As I understand it, the land my house is bobbing about on is a colloid of tumbled rock and Cuisinarted soil, the remains of an avalanche, hundreds of years now past.
She introduces us to quantum dots, colloids, and the field of plasmonics, and how they can be used to create more efficient light sources.
Plating on plastics traditionally has been accomplished using tin/ palladium colloidal-type activation systems with electroless chemistries.
***

In science:

Recently the OTD has also been used to analyse the experimental data on the “on-off” fluorescence intermittency emitting from colloidal (CdSe) semiconductor quantum dots .
The Local and the Occupation Time of a Particle Diffusing in a Random Medium
In Brownian liquids, as formed e. g. by colloidal suspensions, the ergodic–nonergodic transition is well described by MCT: van Megen W 1995 Transp.
Structural Relaxation and Mode Coupling in a Simple Liquid: Depolarized Light Scattering in Benzene
In fact, its most impressive experimental proof was found in colloids (Pusey and van Megen 1986; van Megen and Underwood 1994), which do not have an energy landscape.
Energy landscape - a key concept for the dynamics of glasses and liquids
Compared with atoms, colloidal particles have larger sizes, a slower diffusion, and a range of attraction much smaller than the hard-core diameter (Pusey, 1991; Anderson and Lekkerkerker, 2002).
Clusters in Simple Fluids
What is more, percolation lines are frequently observed in attractive colloidal suspensions.
Clusters in Simple Fluids
***