say it: KAHR-dee-uh
cardia is a noun meaning "the opening into the stomach and that part of the stomach connected to the esophagus". It carries one recorded sense.
the opening into the stomach and that part of the stomach connected to the esophagus
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 cardia 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.