- phænomenology (obsolete)
+ From the Ancient Greek λόγος (lógos, “the study of, an account, speech, oration, discourse, word, ratio, calculation, reason”).
Thus, by extension "the study of what shows itself (to consciousness").
According to Heidegger's Introduction to Phenomenological Research, "the expression “phenomenology” first appears in the eighteenth century in Christian Wolff’s School, in Lambert’s Neues Organon, in connection with analogous developments popular at the time, like dianoiology and alethiology, and means a theory of illusion, a doctrine for avoiding illusion." (p.3)
- (philosophy) The study of structures of consciousness as experienced from the first-person point of view.
- (philosophy) A movement based on this, originated about 1905 by Edmund Husserl.