Top Definition
Often a term used in the automotive industry to conduct a thorough diagnosis of a vehicle usually taking many more hours than is recommended. This is basically one step below completely tearing the car apart.
Brandon: How is the car coming along?
Jeff: I can't seem to figure out what the problem is!
Brandon: You've been working on that car for 3 hours.
Jeff: Yes, I need to perform "diagnostificationism".
by Jeff Pieper May 27, 2008
5 Words related to diagnostificationism

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.