eidolon

[ ahy-doh-luh n ]
/ aɪˈdoʊ lən /

noun, plural ei·do·la [ahy-doh-luh] /aɪˈdoʊ lə/, ei·do·lons.

a phantom; apparition.
an ideal.

Origin of eidolon

First recorded in 1820–30; see origin at idol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for eidolon

eidolon

/ (aɪˈdəʊlɒn) /

noun plural -la (-lə) or -lons

an unsubstantial image; apparition; phantom
an ideal or idealized figure

Word Origin for eidolon

C19: from Greek: phantom, idol
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