colloid >> /ˈkɑlɔɪd/
Definition: [noun] A homogeneous noncrystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.
Example: And 10 years later he used freezing point depressions to determine the molecular weights of colloids such as gum, Fe 3 etc.
Definition: [adjective] Of the nature relating to or characterized by a colloid or colloids.
Example: Several previous reports have dealt with the experimental and theoretical aspects of depletion aggregation, often termed depletion flocculation, as applied to the general field of colloid chemistry.