gel

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gel:

see colloidcolloid
[Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The mixture is also called a colloidal system, colloidal solution, or colloidal dispersion.
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gel

[jel]
(chemistry)
A two-phase colloidal system consisting of a solid and a liquid in more solid form than a sol.

gel

A semisolid material, somewhat elastic, composed of matter in a colloidal state that does not dissolve; remains suspended in a solvent. Also see cement gel.
References in periodicals archive ?
Nosocomial outbreak of Klebsiella pneumoniae producing SHV-5 extended-spectrum beta-lactamase, originating from a contaminated ultrasonography coupling gel.
May be a drop of topical anesthetic is applied to the ocular surface, and the ultrasound probe with sterile coupling gel is applied directly to the cornea or eyelids as the patient permits [3,9].
Data were collected for 5 s, and then all four electrodes were removed and replaced with new electrodes and new coupling gel, a process that took a few minutes.