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Relating to, affecting, or situated in the brain.‘Evidently, the primordia of the adult antennae are formed during embryogenesis in the form of the larval antennae, which also holds for most other head structures in the encephalic Tribolium.’‘It's often called paradoxical sleeping because it's characterized by heightened encephalic activity but also muscular immobility.’
Mid 19th century from Greek enkephalos ‘brain’ (from en- ‘in’ + kephalē ‘head’) + -ic.
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