n. In classical mythology, the personified and deified soul or spirit, the beloved of Eros, by whom she was alternately caressed and tormented.n. [lowercase] The human soul or spirit or mind.n. The 16th planetoid, discovered by De Gasparis at Naples in 1852.n. In zoology: In entomology, a genus of bombycid moths, erected by Schrank in 1801 (after Linnæus, 1735), and typical of the family Psychidæ.n. In conchology, a genus of gymnosomatous pteropods of the family Eurybiidæ. Also called Halopsyche.n. [lowercase] In anatomy, the cerebrospinal nervous system: in Haeckel's vocabulary applied to the brain and spinal cord as the physiological center of the nervous system, in the activities of which he supposed the soul or spirit to subsist.n. [lowercase] A large mirror, in which the whole person can be seen, usually hung on pivots at the sides, the whole being supported in a movable frame.