- a hollow in bare rock, narrow at the opening and wider at the bottom, in which water collects.
Origin of gnamma hole
First recorded in 1900–05, gnamma hole is from the Nyungar word ŋamma
Also called namma hole.
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- a variant spelling of namma hole
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012