say it: THIK-uhnd
thickened is an adjective meaning "made or having become thick". It carries 3 recorded senses.
made thick in consistency
“flour-thickened gravy”
“dust-thickened saliva”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for thickened come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.