melanin
Melanin is a name for the aromatic biopolymer and organic semiconductor responsible for human eye and skin color. The same chemical is also found in the feathers of birds, the scales of fish, the fur of animals and the chitin of insects. Melanin has been found intact in fossils. Microorganisms also contain melanin. Melanin is in the ink of cephalopods. Sepia is the Greek word for the black matter emitted by sepia officinalis, the common cuttlefish. Melanin extracted from that ink is currently worth over $350 a gram more than gold. There are three melanins. Pheomelanin is red and yellow. Eumelanin is brown and black. In plants allomelanin is also brown and black. Though some refer to a "neuromelanin," it is actually eumelanin which performs a neurological function. Melanogenesis, the name for the chemical metabolism that gives rise to melanin, is not a single universal process. Pheomelanin and eumelanin follow a similar pathway until the L-dopaquinone phase of their formation. At that stage adding L-cysteine will produce pheomelanin; the absence of L-cysteine results in eumelanin. Skin cancer rates and deaths from melanoma are highest in people with the least amount of skin melanin. The opposite is true for people with the highest amount of skin melanin. Like all polyacetylenes, melanin has high electrical conductivity. Melanin was first proven to be a semiconductor in 1973 when, by Dr. John Mcginness and Dr. Peter Proctor to manufacture a melanin bi-stable switch.
The Urban Dictionary Mug
You can't get a mug from any other dictionary site
Was quality and delivered quick our friend loved it!
Quality and style are outstanding relative to price point.
Quick delivery, easy ordering, unique and special gift!
My coach loves it. I gave this to my coach and she was over the moon. Ever been hugged by an Olympic gold medalist?
Perfect cuup of coffee size, and the printing is spot on!
Arrived speedily and exactly as pictured.
I LOVE GETTING THE FUCKING MUG
The wife absolutely loved it for her birthday
it was the best and it was so worth the 10000000000 dollars
Can we really send one to Trump? That's where mine is going. Anyone who gets it will see it as a compliment, I'm sure. Love my mug and love that new "urban dictionary" term: Celebritrash. It'll be in the mainstream dictionaries next week.
My friend saw the message on the cup ordered at a mutual friends house. We think it’s hilarious so had to put it on a coffee cup. Funny, great Christmas present. If she can’t use in public she can always use at home for pens and pencils on her desk!
Bought the "Bump Down" mug for my boyfriend, he thought it was the greatest and couldn't believe I'd actually found something with the phrase on it!
Great mug but i can't manage to get it out of my asshole again
First heard the term “Cheddar Headed” from the song Feel Good by the Gorillaz. Had to look it up and found the definition hilarious and at times very true! So......had to have it! Took it to work and it definitely made an impression. Hahaha!
This was purchased as a gift , and it describes the recipient perfectly . It arrived sooner than expected, and I am very impressed with the quality .
The mug I ordered was exactly as described on the site. The shipping was fast as well. I will buy from these people again.
Cute mug, arrived promptly in great condition. I like how you can choose background color & change wording. Will feel cheerful when drinking my coffee in this :)
Heavenly Mug This mug has been sent from the heavens. I'm too broke to buy it. But one day... I will. I will be mugged, dammit!
Why am I here? I don't know how I got here, but I can't stop writing weird things on the cup...😅 Help me. I have a test to study for. A family. Also, if I wasn't broke I would buy 10,000 of these mugs. They look highly entertaining. Love this website, and I probably will fail the test. 🙃
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