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.
– origin C19: from Gk kolla ‘glue’ + -oid.
'colloid' also found in these Oxford entries:

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