D defs.my
Entry 1 sense Webster, 1913

Psychology

/sī-kŏlʹə-jē/ · Psy·chol·o·gy · IPA /saɪˈkɑ.lə.d͡ʒi/
01 n. The science of the human soul; specifically, the systematic or scientific knowledge of the powers and functions of the human soul, so far a…
pl. Psychologies
  1. 1.
    The science of the human soul; specifically, the systematic or scientific knowledge of the powers and functions of the human soul, so far as they are known by consciousness; a treatise on the human soul.
    Psychology, the science conversant about the phenomena of the mind, or conscious subject, or self.” Sir W. Hamilton.