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1.
A person who deals with numbers while working in a professional, scientific or technical field.

A person who has a facility for mathematics or number calculations.
"You engineers are all a bunch of digitheads."

"My little brother is a digithead."
by Krisjs1767 October 17, 2006
 
2.
A person who works in a scientific or technical field.
"You engineers are all a bunch of digit heads."
by krisjs1767 May 17, 2006