gilgai

plural gilgais

1. AustraliaA small concavity or depression between ridges, where rainwater gathers.

   Though it wasn′t a heavy storm it was enough to put water in gilgai holes and scatter the horses.

   1988, Tom Cole, Hell West and Crooked, Angus & Robertson, published 1995, page 160

   2 more examples

   Argilliturbation is manifested within Vertisol profiles and on the surface as gilgai microtopography, with relief exceeding commonly 15 cm (Fig. 10.35).

   2005, Randall J. Schaetzl, Sharon Anderson, Soils: Genesis and Geomorphology, page 283

   One of its most remarkable features is its patterns of gilgai. The gilgais are small, almost circular depressions from a few centimetres to as much as 50 cm deep in the plain and several metres across.

   2007, Richard Webster, Margaret A. Oliver, Geostatistics for Environmental Scientists, page 140

   Synonyms: crab-hole, dead-men's grave, melon hole

1. A locality in the Inverell council area, north eastern New South Wales, Australia.