- (of liquids) thick and sticky; viscid
- having or involving viscosity
WordReference Random House Learner's Dictionary of American English © 2026
vis•cous /ˈvɪskəs/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- Physicsof a thick, sticky consistency.
- Physicshaving the property of viscosity.
vis•cous
(vis′kəs),USA pronunciation adj.
vis′cous•ly, adv.
vis′cous•ness, n.
- Physicsof a glutinous nature or consistency;
sticky;
thick;
adhesive. - Physicshaving the property of viscosity.
- Late Latin viscōsus, equivalent. to Latin visc(um) mistletoe, birdlime (made with mistletoe berries) + -ōsus -ous
- Middle English 1350–1400
vis′cous•ness, n.
Collins Concise English Dictionary © HarperCollins Publishers::
viscous /ˈvɪskəs/, viscose adj
'viscous' also found in these entries (note: many are not synonyms or translations):
bitumen
- blob
- choline
- gelatinous
- goo
- gum
- lanolin
- molasses
- nitroglycerine
- oil
- phylloquinone
- pine tar
- propylene glycol
- rope
- ropey
- scopolamine
- slime
- sodium silicate
- spinneret
- starch
- sticky
- stiff
- string
- treacle
- tube
- turpentine
- viscid
- viscose
- viscosity
- vulcanian
- water glass
- wax
- white
- allethrin
- benzonitrile
- cadaverine
- Canada balsam
- chlordane
- close
- coat
- collodion
- dextran
- dimercaprol
- ethanolamine
- glair
- glairy
- goop
- goopy
- grume
- hyaluronic acid