Top Definition
The 59th element on the periodic table. The metal belongs to the lanthanides at the bottom of the table. It is almost as soft as aluminum and will slowly corrode in dry or moist air. A fresh sample will lose it's shine in a week and a small piece will be consumed in a few years if not stored in oil or inert gas. You can wipe off the forming oxide layers to abate spalling and further exend the life of the metal. It reacts very slowly with water. Praseodymium is rapidly consumed by various acids. The compounds of Praseodymium are yellowish green and are non toxic if insoluble. The metal likes to set on fire if heated The name translates from "green twin" in greek.
Praseodymium belongs to the lanthanides, those metals at the bottom of which no one can pronounce the names of.
by Gallium 31 July 12, 2017

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It's like jackin' off a molecule
Dude, I was vibronic coupling so hard last night. I broke LaPorte's rule, and went from g to g real quick. What an inversion! it's all over the spectra
by S.Nayak December 05, 2018

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VulĀ“pic - (Chem.) Pertaining to, derived from, or designating, an acid obtained from a lichen (Cetraria vulpina) as a yellow or red crystalline substance which on decomposition yields pulvinic acid.
We learned about Vulpic today in class.
by Vulpic June 07, 2018

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No one gives a fuck.
"Have you heard about Le Chatelier's Principle in Chemistry yet?"

"Yeah, no one gives a fuck."
by Rusty Handle April 05, 2017

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A shortcut to remember 5 key polyatomic ions for chemistry.
Kids, if you know Clonocosopo then you know at least 11 more polyatomics!
by Teachhs January 03, 2018

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