Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
self-sealing is an adjective meaning "capable of sealing itself as after being pierced". It carries 2 recorded senses.
Definitions, synonyms and semantic relations for self-sealing come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.