The chemistry of colloids, which are mixtures where one substance is dispersed throughout another (like fog or milk).
From 'colloid' (Greek 'kolla' meaning glue + 'eidos' meaning form) + 'chemistry.' Emerged as a science term in the 19th-20th centuries as scientists studied these mysterious mixtures.
Colloid chemistry is why soap works and why mayonnaise exists—these are colloids with an oil dispersed in water, and without understanding collochemistry, we'd never have invented them on purpose.
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