hiatus(redirected from hiatus semilunaris)
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Related to hiatus semilunaris: Ethmoidal bulla, Frontonasal duct, Ostiomeatal Unit
1. a natural opening or aperture; foramen
2. a less common word for vulva
A space or a passage through an organ.
A gap in a rock sequence due to a lack of deposition of a bed or to erosion of beds.