'Idolum' definitions:

Definition of 'Idolum'

From: GCIDE
  • Idolum \I*do"lum\, Idolon \I*do"lon\, n.; pl. Idola. [L. See Idol; cf. Eidolon.] Appearance or image; a phantasm; a spectral image; also, a mental image or idea. [Webster 1913 Suppl.]