Thickening

//ˈθɪkənɪŋ// adj, noun, verb

adj, noun, verb ·Moderate ·College level

Definitions

Noun
  1. 1
    The process of making something, or becoming, thick or viscous. countable, uncountable
  2. 2
    the act of thickening wordnet
  3. 3
    A substance, usually a source of starch, used to thicken a sauce. countable, uncountable
  4. 4
    any thickened enlargement wordnet
  5. 5
    A thickened part of a structure. countable, uncountable

    "[…] the inner layer (of nearly equally large cells) lacks the regular semiannular or annular thickenings of most other leafy liverworts […]"

Show 1 more definition
  1. 6
    any material used to thicken wordnet
Verb
  1. 1
    present participle and gerund of thicken form-of, gerund, participle, present
Adjective
  1. 1
    Beginning to thicken, becoming thicker. not-comparable

    "From Keighley onwards we had obviously returned to civilisation, for the surrounding country was now studded with the sodium street lights of suburbia and a thickening industrial haze was blotting out the moon."

Adjective
  1. 1
    accumulating and becoming more intense wordnet
  2. 2
    becoming more intricate or complex wordnet

Example

More examples

"The fog was thickening quickly."

Etymology

From thicken + -ing.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.