Definitions for gilgai
gil·gai

WiktionaryRate this definition:2.0 / 1 vote

1. gilgainoun

   A small concavity or depression between ridges, where rainwater gathers.

2. Etymology: From gilgaay.

WikidataRate this definition:0.0 / 0 votes

1. Gilgai

   Gilgai is an Australian English word referring to a small, ephemeral lake formed from a depression in the soil surface. Gilgais are commonly a few metres across and less than 30 cm deep, however in some instances they may be several metres deep and up to 100 metres across. Gilgais are common and widespread in Australia but also occur in isolated locations worldwide. Gilgais are also commonly called Melon holes in Northern Australia. In the United States these landforms were called hogwallows in the 19th and early 20th centuries. There are various theories of the origin of gilgai. A popular theory is as follows: Gilgais form on certain clay soils due to the swelling of the clay when wet and subsequent shrinkage upon drying. This action causes the soil to crack when dry and loose soil material then fills these cracks. When the soil swells upon subsequent re-wetting the soil pressure cannot be dispersed into the now-full cracks and the soil is forced sideways causing a mound to form between cracks and a depression to form at the location of the crack. The process is then further exaggerated by the depressions holding water and thus becoming wetter and swelling more than the mounds, causing even greater shrinkage and cracking. In addition, the cracks channel water deeply into the soil causing even greater swelling and subsequent cracking of the depression areas. Each cycle of swelling, shrinkage and cracking becomes more exaggerated and the landscape eventually becomes covered by a repeated pattern of mounds and depressions. The depressions are gilgais which become filled with water during the wet seasons.

How to pronounce gilgai?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say gilgai in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of gilgai in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of gilgai in Pythagorean Numerology is: 9

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Gilgai
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=gilgai