First Known Use: 14th century
Dictionary
viscous
adjective vis·cous \ˈvis-kəs\
of a liquid : thick or sticky : not flowing easily
Full Definition of VISCOUS
1
: viscid
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Origin of VISCOUS
Middle English viscouse, from Anglo-French viscos, from Late Latin viscosus full of birdlime, viscous, from Latin viscum mistletoe, birdlime; akin to Old High German wīhsila cherry, Greek ixos mistletoe
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Medical Dictionary
viscous
adjective vis·cous \ˈvis-kəs\
Medical Definition of VISCOUS
1
: having a glutinous consistency and the quality of sticking or adhering : viscid
2
: having or characterized by viscosity <a viscous flow>
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