Definition of psychohydraulic in English:

psychohydraulic

Pronunciation /ˌsʌɪkə(ʊ)hʌɪˈdrɒlɪk/

adjective

Zoology Psychology
  • Relating to or designating a mechanistic model of behaviour in which instinctive drives or other forms of internal motivation are held to act in the manner of a fluid working under pressure.

    Originally with reference to the theory of animal behaviour proposed by Konrad Lorenz, who used the terms hydromechanical and hydrostatical with reference to models of behaviour.

Origin

1960s. From psycho- + hydraulic, after psychohydraulics.