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thickening (countable and uncountable, plural thickenings)

  1. The process of making something, or becoming, thick or viscous.
  2. A substance, usually a source of starch, used to thicken a sauce.
  3. A thickened part of a structure.
    • 1992, Rudolf M. Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, page 6
      [] the inner layer (of nearly equally large cells) lacks the regular semiannular or annular thickenings of most other leafy liverworts []
    • 1902, Edwin Hurry Fenwick, Obscure Diseases of the Urethra, page 30:
      They disappear at once on slightly relaxing the air-pressure, whilst true incipient thickenings of the surface remain white and unpliably stiff.




  1. present participle of thicken