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Carbon Tetrachloride 

Carbon Tetrachloride is a toxic but very useful solvent used in brominating thiophene to 2-Bromothiophene using bromine. Carbon Tetrachloride is synthesized by adding chlorine to chloroform and iron powder. Carbon Tetrachloride is toxic to the kidneys and liver.
Properties
Chemical formula
CCl4
Molar mass
153.81 g/mol
Appearance
Colourless liquid
Odor
Sweet, chloroform-like odor
Density
1.5867 g/cm^3 (liquid)
1.831 g/cm^3 at −186 °C (solid)
1.809 g/cm^3 at −80 °C (solid)
Melting point
−22.92 °C (−9.26 °F; 250.23 K)
Boiling point
76.72 °C (170.10 °F; 349.87 K)
Solubility in water
0.097 g/100 mL (0 °C)
0.081 g/100 mL (25 °C)
Solubility
Soluble in alcohol, ether, chloroform, benzene, naphtha, CS2, formic acid
I brominated thiophene to 2-Bromothiophene with bromine in Carbon Tetrachloride.

tetrachad 

An informal compliment used to call someone impeccably and mentally strong🗿
When James finished his college graduation speech, his friends started to call him tetrachad
tetrachad by Neurochad September 9, 2023

Tetrachromacy 

Whenever an organism can detect four rays of light. (Red, yellow, blue, ultraviolet)
Birds, reptiles, and fish typically have tetrachromacy.
Tetrachromacy by WhoDatFreshBoi July 16, 2018

Tetrachromaphobia 

Lindsay doesn't like people who can see four basic colors. She has tetrachromaphobia.
Tetrachromaphobia by izzy44 October 15, 2013

Tetrachromacy 

Tetrachromacy is an ability which helps many beings, who are known as tetrachromats, to see a better variety of colors.

That ability is found in animals, in insects and in fish, including some people who usually are women. Researchers believe that those four kinds of cone cells might vary from beings to beings, for example, they help some women to see the blue, the green, the red, and the true yellow color, while some of other beings (non-humans) might see four other different kinds of colors.

In humans, tetrachromacy is not a kind of visual problem, since it does not affect the way they live.

Online tests does not help people to know whether they are tetrachromats because many screens are based on RGB (red, blue, green) systems.

That ability is still being studied, a lot of changes might occur.
According to science, tetrachromacy is interesting since it is believed to exist more tetrachromat women than men.
Tetrachromacy by Nosylath July 16, 2017

Diatonic-phrygian-tetrachord 

If you know what this is, then you’re most likely a pretentious jazz school student with negative aura. Especially if you try to explain to normal people what it is.
The song “25 or 6 to 4” uses a diatonic-Phrygian-tetrachord progression
More from Urban Dictionary
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026

You met me at a very Chinese time in my life

A moment in time where you feel distinctly Chinese over all other things.
Dante: "I wish I could be Nigerian, but I can't because I'm Chinese. You met me at a very Chinese time in my life."
Word of the Day on September 25, 2026
Adjective. Used to describe persons who have adjusted or altered their lifestyle for environmental reasons. Crunchy persons tend to be politically strongly left-leaning and may be additionally but not exclusively categorized as vegetarians, vegans, eco-tarians, conservationists, environmentalists, neo-hippies, tree huggers, nature enthusiasts, etc.

Also used to describe establishments where alternative foods and products are sold, i.e. natural food stores.

Modified derivative of granola.
"I need more crunchy guys in my life. I'm so tired of dating preppy metrosexual assholes."

"I'm heading out to the crunchy store to pick up some fair trade chocolate and tea tree oil, do you need anything?"
crunchy by EBC July 11, 2007
Word of the Day on September 24, 2026
A group of people, typically women, searching through someone’s digital footprint in order to find more information about that person.
Susie wasn’t sure if her new Hinge match was a creep, so she assembled Galantir and they found out he used to post slurs on gaming forums.
Galantir by Ge-sus September 22, 2026
Word of the Day on September 23, 2026

murderhobo 

In a tabletop game, a murderhobo is a player who murders NPCs indiscriminately. This is normally derogatory, referring to a player who totally ignores quests, dialog, backstory, trade, world building etc.

The term is most common with Dungeons and Dragons, but it can be applied to most RPGs where the player is allowed to kill most quest-giving NPCs and NPC traders. E.g. Elder Scrolls, Fallout, Divinity original sin.
DM: The sad little orphan girl tugs at Steve's trenchcoat to get his attention, and ask for help saving her pet dog from...
Steve: I'd like to roll a strength check against strangling the orphan.
Dave: I call dibs on the dog.
DM: You murderhobos disgust me.
murderhobo by Loup&S September 9, 2021
Word of the Day on September 22, 2026
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