What is the meaning of thickened?

verb

• Make thick or thicker.
  • usage: "Thicken the sauce"; "inspissate the tar so that it becomes pitch"
  • synonyms: thicken, inspissate
• Become thick or thicker.
  • usage: "The sauce thickened"; "The egg yolk will inspissate"
  • synonyms: thicken, inspissate
• Make viscous or dense.
  • usage: "thicken the sauce by adding flour"
  • synonyms: thicken, inspissate

adjective

• Made or having become thick.
  • usage: "thickened bronchial arteries"
• Having calluses; having skin made tough and thick through wear.
  • usage: "calloused skin"; "with a workman's callous hands"
  • synonyms: calloused, callous
• Made thick in consistency.
  • usage: "flour-thickened gravy"; "dust-thickened saliva"