You searched for: “logician
logician (s) (noun), logicians (pl)
Someone who is skilled in reasoning: The professor was a highly respected logician.

A logician is a person who thinks nothing of thinking or who always has a reason for a reason.

—Evan Esar
This entry is located in the following units: -an (page 1) -ician (page 2) logic (page 1)
(Greek: talk, speak; speech; word; a person who speaks in a certain manner; someone who deals with topics or subjects)