Physical Chemistry a substance made up of a system of particles with linear dimensions in the range of about 10−7 to 5 × 10−5 cm dispersed in a continuous gaseous, liquid, or solid medium whose properties depend on the large specific surface area. The particles can be large molecules like proteins, or solid, liquid, or gaseous aggregates and they remain dispersed indefinitely.
Medicine/Medical a colloidal substance in the body, as a stored secretion or a cyst.
Physical Chemistry colloidal


IUPAC definition. Colloid: Short synonym for colloidal system. Colloidal: State of subdivision such that the molecules or polymolecular particles dispersed in a ...

Colloid dictionary definition | colloid defined - YourDictionary

The definition of a colloid is a combination of molecules mixed through other substances that will not settle out or join with the other substance. Mayonnaise and ...

Colloid | Definition of colloid by Merriam-Webster

a gelatinous or mucinous substance found normally in the thyroid and also in diseased tissue. 2. a : a substance that consists of particles dispersed throughout  ...
Definition: A type of homogeneous mixture in which the dispersed particles do not settle out. More »
By Anne Marie Helmenstine, Ph.D., Guide

Colloids: Definition, Types & Examples |

Definition. Colloids are important in both the natural environment and for manufactured products. A colloid is mixture where at least two types of substances are ...

Colloid - definition of colloid by The Free Dictionary

a. A system in which finely divided particles, which are approximately 1 to 1,000 millimicrons in size, are dispersed within a continuous medium in a manner that ...

ColloidalDefinition - What is Colloidal?

ColloidalDefinition. Colloidal refers to items of a small size that are floating in a medium of one of three substances: a solid, a liquid, or a gas. Colloidal ...


DEFINITION AND CLASSIFICATION OF COLLOIDS. The term colloidal refers to a state of subdivision, implying that the molecules or polymolecular particles ...

colloid - Dictionary Definition :

The obvious answer is that he's a mad chemist, weighing out colloids and ... Colloid solutions can appear solid against strong downward forces, but weak ...

colloid | Define colloid at
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Popular Q&A
Q: What's the definition of colloidal gel?
A: colloidal gel: a colloid in a more solid form than a sol Read More »
Q: What is the chemistry definition of a colloid?
A: Colloid is defined as a substance composed of two homogeneous phases, Read More »
Q: What is the definition of a colloid?
A: Colloid:1:a mixture with properties between those of a solution and fine Read More »
Q: What is the definition of a colloid ?
A: A colloid is a special type of mixture where the particles are larger than elemental (as in a solution) but do not settle. They can be centrifuged out. They can... Read More »
Q: What is the definition of a colloid?
A: Colloid: 1. glutinous or resembling glue. 2. a substance comprising very small, insoluble particles, usually 1 to 1000 nm in diameter. Read More »