D defs.my
Entry 1 sense Webster, 1913

Ology

/ŏʹlə-jē/ · Ol·o·gy · IPA /ˈɑ.lə.d͡ʒi/
01 n. A colloquial or humorous name for any science or branch of knowledge.
  1. 1.
    A colloquial or humorous name for any science or branch of knowledge.
    “He had a smattering of mechanics, of physiology, geology, mineralogy, and all other ologies whatsoever.” De Quincey.