Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
estuarial is an adjective meaning "of or relating to or found in estuaries". It carries one recorded sense.
of or relating to or found in estuaries
Definitions, synonyms and semantic relations for estuarial come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .