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Phonetics
/haɪˈeɪtəs/
noun
A gap in a series, making it incomplete.
An interruption, break or pause.
An unexpected break from work.
A gap in geological strata.
An opening in an organ.
Example: Hiatus aorticus is an opening in the diaphragm through which aorta and thoracic duct pass.A syllable break between two vowels, without an intervening consonant. (Compare diphthong.)
Example: Words like reality and naïve contain vowels in hiatus.