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Sigma

Sigma is the eighteenth letter of the Greek alphabet.

Uppercase sigma (Σ) is used in Sigma Notation, also known as summation notation in mathematics. It represents the addition of a sequence, and this sequence can be derived from values given by a function, values in a set, values present in a Free-Body Diagram, etc.

Lowercase sigma (σ) represents many things across all sciences. Notably, it represents the Stefan-Boltzmann constant, a constant used in the Stefan-Boltzmann law of radiation. In chemistry, sigma bonds are a type of bond characterized by overlapping p-orbitals. In quantum mechanics, sigma represents Pauli matrices. In biology, sigma receptors are poorly understood cell receptors that bond to certain stimulants like cocaine, meth, and other drugs.
Person 1: Sticking out your gyatt for the rizzler... I just wanna be your sigma...
Person 2: Erm 🤓🤓🤓 technically 🤡🤡🤡 your statement implies you want to be the my summation, further implying you want to be a part of my cell receptors 🫢🫢🫢 my atomic bonds 😤😤😤 and my-
Person 1: Can you shut the fuck up and kys
by skibidi, my friend. December 28, 2023
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Sigma

No, being homophobic, racist, sexist, anti-semitic, religious, anti-furry, etc doesn't make you SiGmA
"Im a sigma male!" -🤓☝️
by Inni84 May 3, 2024
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gyatt sigma ohio rizz

Bro, you're so gyatt sigma ohio rizz!

Yeah- wait, what the fu-
by bl6nk May 5, 2024
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Sigma Stan

A person who is obsessed with the term sigma male and tries to mimic a sigma male on a day to day basis.
by Alpha74738 September 26, 2022
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erm what the sigma

erm what the sigma is used as a term to identify the expression of being shocked at a weird thing
Bob: "I GYATT to see the third graders"
Kanye: "Erm what the sigma"
by Primski May 9, 2024
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Sigma

For example: omg there is lotta and susanne we have to edgeeee like right now. Is that livvy dunne?! NO! Thats Lotta and Susanne just existing.

Or: Is that John Pork and Tim Cheese?! No it is just the casual duo of sigmas- Lotta and Susanne
by SIGMAAAA April 1, 2025
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Penis Sigma

by #1SigmaOAT May 15, 2024
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