hi·a·tion (hi-aґshən) yawning.

Medical dictionary. 2011.

Look at other dictionaries:

  • Hiation — Hi*a tion, n. [See {Hiatus}.] Act of gaping. [Obs.] Sir T. Browne. [1913 Webster] …   The Collaborative International Dictionary of English

  • Opening — (Roget s Thesaurus) < N PARAG:Opening >N GRP: N 1 Sgm: N 1 hole hole foramen Sgm: N 1 puncture puncture perforation Sgm: N 1 fontanel fontanel Sgm: N 1 transforation transforation Sgm: N 1 pinhole pinhole …   English dictionary for students

  • Yawning — The involuntary opening of the mouth with respiration, breathing first inward, then outward. Yawning is often caused by suggestion. Repeated yawning is commonly a sign of drowsiness. It can also sometimes be a sign of depression. * * * The act of …   Medical dictionary

  • aperture — n opening, hole, eye, eyelet, eyehole, peephole, pinhole, puncture, perforation, interstice, pore, bore, airhole, spiracle; slit, crack, gash, vent, slot, rent, foramen; chink, cleft, cranny, rift, crevice, fissure, Archaic. scissure; gap, break …   A Note on the Style of the synonym finder

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