from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The tendency to establish temporary, chiefly improvisational policies and procedures to deal with specific problems and tasks: "In the absence of specific policies carefully tended by specialists, ad hocism took root” ( U.S. News & World Report).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Use of ad hoc or improvised reasoning.
From ad hoc + -ism. (Wiktionary)