hiatu
hiatu is a Latin form of hio, meaning “gape, open the mouth; (hiatus) opening, gap”.
It can also be a form of hiatus, “opening/cleft/fissure/split/crevice; (maybe rude); chasm”. It is the ablative singular masculine noun or supine dative singular neuter.
Found 68 times in the Latin texts on Socratos.
Where it is used
Cicero, De Natura Deorum 2.122: … vero alia animalia gradiendo alia serpendo ad pastum accedunt, alia volando alia nando, cibumque partim oris hiatu et dentibus ipsis capessunt, partim unguium tenacitate arripiunt partim aduncitate rostrorum, alia sugunt ali …
All forms of hio (conjugation table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.