From Longman Dictionary of Contemporary Englishviscousvis‧cous /ˈvɪskəs/ adjective technicalLIQUID a viscous liquid is thick and sticky and does not flow easily As the liquid cools, it becomes viscous. —viscosity /vɪˈskɒsəti $ -ˈskɑː-/ noun [uncountable]
Examples from the Corpus
viscous• The creatures died on their backs in viscous green pools.• Pools of viscous liquid started to spread across the floor.• The process is normally incomplete because crystallization takes place when the polymer is a viscous liquid.• It is a gum and in water produces a very viscous solution even at low concentrations.• This thin region is known as the viscous sub-layer.Origin viscous (1300-1400) Late Latin viscosus, from Latin viscum “mistletoe, sticky substance used for catching birds” 