NACRE by Heather Luke | Jun 14, 2015 Mother of pearl, sometimes used by French fabric houses to describe the oyster/off-white colour of their fabrics. Alternative Meanings: NACRE Mother of pearl, sometimes used by French fabric houses to describe the oyster/off-white colour of their fabrics.NACREThe real name for mother of pearl, sometimes used by French fabric houses to describe the oyster/off-white colour of their fabrics.