Hawaii's unique volcanoes explained

[terracore]

Well, the word "lava" is actually used in the definition of viscous. I understand the difference between magma and lava but still...
vis·cous
#712;visk#601;s/
adjective
adjective: viscous

having a thick, sticky consistency between solid and liquid; having a high viscosity.
"viscous lava"
synonyms: glutinous, gelatinous, thick, viscid, mucous, mucoid, mucilaginous, gummy, gluey, adhesive, tacky, adherent, treacly, syrupy; technicalviscoelastic;
informalgooey, gloppy
"it's impossible to clean up this viscous substance with water"