Top Definition
A person who believes their form of fitness is superior to all others ( weight training over cardio, crossfit over high intensity interval training etc.) just like a racist believing their ethnicity to be superior, like a racist they will insult and direct derogatory comments towards other fitness methods pointing out there flaws and weaknesses.
Ken the sprinter says to Tom the marathon runner.
"You're skin and bones Tom! You should be doing high intensity interval training and weights to get more muscular, not hours of cardio per day."
"Dont be such a fitnescist Ken, cardio training suits my goals," replied Tom.
by Zerowerk February 08, 2014
5 Words related to Fitnescist

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