[ gohld-bee-terz ]
/ ˈgoʊldˌbi tərz /
the prepared outside membrane of the large intestine of the ox, used by goldbeaters to lay between the leaves of the metal while they beat it into gold leaf.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for goldbeater's skin
/ (ˈɡəʊldˌbiːtəz) /
animal membrane used to separate sheets of gold that are being hammered into gold leaf
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