Definitions for "Colloidal"
a colloid that has a continuous liquid phase in which a solid is suspended in a liquid
Very small insoluble non diffusible particles that remain in suspension.
Colloidal materials are very fine particles like clay minerals that stay in suspension in water for very long periods and make water cloudy.
Keywords:  gel, ions, mass, transfer, allow
A gel-like mass which does not allow the transfer of ions
Keywords:  pertaining, nature
Pertaining to, or of the nature of, colloids.
Keywords:  relating, properties
of or relating to or having the properties of a colloid