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hi-fi
hi-hat cymbals
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hi-lo pass
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hiatal hernia
hiatus
HIB vaccine
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hiatus

hi·a·tus [ hī áytəss ] (plural hi·a·tus·es or hi·a·tus)


noun 
Definition:
 
1. unexpected gap: a break in something where there should be continuity

2. anatomy opening: an opening or aperture in an organ, e.g. the opening in the diaphragm for the esophagus

3. phonetics separation between vowels: a break in pronunciation between two vowels that are next to each other in consecutive syllables without an intervening consonant, as in "reexamine"

4. printing omission: a gap where something is missing, especially in manuscripts

[Mid-16th century. < Latin, "gaping, opening" < hiare "gape" < Indo-European]
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