i·dée fixe 
(ē-dā fēks)
(ē-dā fēks)n. pl. i·dées fixes (ē-dā fēks)
A fixed idea; an obsession.
[French : idée, idea + fixe, fixed.]
- paraphilic
- paraphilic disorder
- paraphrasable
- paraphrase
- paraphraser
- paraphrastic
- paraphrastical
- paraphrastically
- paraphyletic
- paraphyletically
- paraphyly
- paraphysis
- paraplegia
- paraplegic
- parapodium
- parapraxis
- paraprofessional
- parapsychic
- parapsychological
- parapsychologist
- parapsychology
- paraquat
- parasail
- parasailer
- parasang