/awr'iz mol"euh jee, or'-/ , n.
the science of defining the technical or special terms of a particular subject or field of study.
[ 1810-20; horism ( ós ) definition, lit, marking of boundaries (deriv. of horízein to delimit, make a boundary; see HORIZON) + -O- + -LOGY, with erroneous omission of initial h- ]