psy·cho·chem·i·cal 
(sī′kō-kĕmĭ-kəl)
(sī′kō-kĕmĭ-kəl)n.
A psychoactive drug or substance.
adj.
Of or relating to psychochemicals.
- encephalic
- encephalitic
- encephalitis
- encephalitis lethargica
- encephalization
- encephalize
- encephalo-
- encephalogram
- encephalograph
- encephalographic
- encephalographically
- encephalography
- encephaloma
- encephalomyelitis
- encephalon
- encephalopathic
- encephalopathy
- encephalous
- enchain
- enchainment
- enchant
- enchanter
- enchanting
- enchantingly
- enchantment