thickened
    adj 1: made or having become thick; "thickened bronchial
           arteries"
    2: having calluses; having skin made tough and thick through
       wear; "calloused skin"; "with a workman's callous hands"
       [syn: calloused, callous, thickened]
    3: made thick in consistency; "flour-thickened gravy"; "dust-
       thickened saliva"

Thicken \Thick"en\, v. t. [imp. & p. p. Thickened; p. pr. &
   vb. n. Thickening.]
   To make thick (in any sense of the word). Specifically: 
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   (a) To render dense; to inspissate; as, to thicken paint.
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   (b) To make close; to fill up interstices in; as, to thicken
       cloth; to thicken ranks of trees or men.
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   (c) To strengthen; to confirm. [Obs.]
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             And this may to thicken other proofs. --Shak.
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   (d) To make more frequent; as, to thicken blows.
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