oneiric UK /əʊˈnaɪ.ɹɪk/US /oʊˈnaɪ.ɹɪk/ adjective2 •Of or pertaining to dreams.Dreams contain oneiric images and oneiric symbols. Both of them are, in fact, 'distorted' manifestations of a latent content which resides in the dreamer's unconscious. — 2007 •Resembling a dream; dreamlike. formsmore oneiric · most oneiric