colloid
Concise Oxford English Dictionary © 2008 Oxford University Press:
colloid /ˈkɒlɔɪd/
▶noun a homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed in a second substance, as in gels, sols, and emulsions.
■ Anatomy & Medicine a substance of gelatinous consistency.
– derivatives
colloidal adjective.
colloidal adjective.
'colloid' also found in these Oxford entries:

