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1.
1. A person who believes in Physical Evidence And Reasoned Logic, (P.E.A.R.L) the essence of the scientific method.

2. One who uses the scientific method.

ex.1 That smart man is quite the Pearlist.

ex.2 He does not have faith since he is a Pearlist.

by Nova_J March 17, 2009
 
2.
A person who believes in the use of

Physical
Evidence
And
Reasoned
Logic

As opposed to a FLAWSist
Sir, Do you believe in god?
Good grief no, I am a pearlist.
by SPACKlick April 14, 2010