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[hahy-ey-tuh s] /haɪˈeɪ təs/

noun, plural hiatuses, hiatus.
a break or interruption in the continuity of a work, series, action, etc.
a missing part; gap or lacuna:
Scholars attempted to account for the hiatus in the medieval manuscript.
any gap or opening.
Grammar, Prosody. the coming together, with or without break or slight pause, and without contraction, of two vowels in successive words or syllables, as in see easily.
Anatomy. a natural fissure, cleft, or foramen in a bone or other structure.
noun (pl) -tuses, -tus
(esp in manuscripts) a break or gap where something is missing
a break or interruption in continuity
a break between adjacent vowels in the pronunciation of a word
(anatomy) a natural opening or aperture; foramen
(anatomy) a less common word for vulva

1560s, “break or opening in a material object,” from Latin hiatus “opening, aperture, rupture, gap,” from past participle stem of hiare “to gape, stand open” (see yawn (v.)). Sense of “gap or interruption in events, etc.” is first recorded 1610s.

hiatus hi·a·tus (hī-ā’təs)
n. pl. hiatus or hi·a·tus·es

hi·a’tal adj.


Read Also:

  • Hiatus esophageus

    hiatus esophageus hiatus e·so·pha·ge·us (ē’sə-fā’jē-əs) n. The opening in the diaphragm between the central tendon and the aortic foramen through which the esophagus and the two vagus nerves pass.

  • Hiatus-hernia

    noun, Pathology. 1. an abnormal condition in which part of the stomach protrudes upward through the esophageal cleft in the diaphragm, sometimes causing a backflow of acid stomach contents into the esophagus. noun 1. protrusion of part of the stomach through the diaphragm at the oesophageal opening hiatus hernia n. See hiatal hernia.

  • Hiatus saphenus

    hiatus saphenus hiatus sa·phe·nus (sə-fē’nəs) n. The opening in the broad fascia through which the saphenous vein passes to enter the femoral vein. Also called oval fossa.

  • Hiatus semilunaris

    hiatus semilunaris hiatus sem·i·lu·nar·is (sěm’ē-lōō-nâr’ĭs) n. A groove in the lateral wall of the middle meatus of the nasal cavity, into which the maxillary sinus, the frontonasal duct, and the middle ethmoid cells open.

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