Top Definition
Possibly, on average, the smartest people around since they can actually back up their knowledge with rigorous proof. Someone who specializes in pure or applied mathematics.
A mathematician is not happy until the proof is complete.
by algebrator July 30, 2009

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A mathematician is a device for turning coffee into theorems.
Asked for a testimony to the effect that Emmy Noether was a great woman mathematician, he said: I can testify that she is a great mathematician, but that she is a woman, I
cannot swear.
by G Gorkenheimer April 06, 2006

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Someone who figures out that his cell phone number is the product of two prime numbers or the sum of two consecutive cubes.
Dr. Ian, a retired mathematician, had an aha! moment last week, when he found out that his mobile number is the product of two primes: 2,879 × 396,733; last year, he also discovered that his second mistress's number is the sum of 1308³ and 1309³.
via giphy
by MathPlus May 24, 2017

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the ultimate form of satan.
a mathematician ruined my life.
by Haschwalth June 11, 2016

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A sexual act where one person (male or female) kneels at a man's side, and with the fingers of one hand probes the anus in a calculator-button pushing motion. The other hand grips the penis and strokes it in a crank handle fashion, as if he or she is operating an old-time crank-handle calculator.
Sally promised the college math professor that if she performed the mathematician on him he would shout out prime numbers at the top of his lungs.
by 0 00 January 08, 2006

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