What does the word viscous mean?

Usage examples for viscous

  1. The sap exuding through the bark formed in white viscous drops upon the trunks. – Greene Ferne Farm by Richard Jefferies
  2. A fellow- traveller tells me, as we lean over the rail, that this same viscous, glaucous sea washes the great penal colony of Cayenne- which he visited. – Two Years in the French West Indies by Lafcadio Hearn