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Nuclear magnetic resonance spectroscopy (NMR) 

Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy or magnetic resonance spectroscopy (MRS), is a spectroscopic technique to observe local magnetic fields around atomic nuclei. The sample is placed in a magnetic field and the NMR signal is produced by excitation of the nuclei sample with radio waves into nuclear magnetic resonance, which is detected with sensitive radio receivers. The intramolecular magnetic field around an atom in a molecule changes the resonance frequency, thus giving access to details of the electronic structure of a molecule and its individual functional groups. As the fields are unique or highly characteristic to individual compounds, in modern organic chemistry practice, NMR spectroscopy is the definitive method to identify monomolecular organic compounds.
Person 1: Do you think our laboratory needs an NMR-spectrometer?

Person 2: I've heard they're unbelievably expensive, but Nuclear magnetic resonance spectroscopy (NMR) is an essential analytical procedure for sure .
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Reasonable Doubt 

1. Rapper Jay-Z's 1996 debut album. Considered by many to be one of the greatest rap albums ever.
2. Legal term for when there is a plausible reason to believe that someone has not committed the crime of which they are being accused.
1. "The Black Album" was tight, but "Reasonable Doubt" is still Jigga's best album.

2. The witness was unable to place my client at the crime, therefore you have reasonable doubt annd you have to acquit my client.

circular reasoning 

Circular reasoning is providing evidence for the validity of an assertion, which assumes the validity of the assertion.

General forms include "A is true because A is true" or "A is true because B is true, and B is true because A is true".

Often used as a mechanism to prevent an assertion from being challenged or questioned, or to "win" a debate by sending it round and round in circles.
Examples of circular reasoning:

"I'm right because I'm right."

"There isn't a problem with the rule, because if everyone obeyed it there wouldn't be a problem."

"Piracy is wrong because it's against the law, and it's against the law because it's wrong."

"X is stupid because he's an idiot."
circular reasoning by fwe22 May 25, 2006

Resonance 

The song that makes you forget that the world is shitty for three minutes.
Sam: I hate my life. I'm gonna listen to Resonance.
John: Don't leave me out! I want to forget that life sucks too!
Resonance by NotPieGuy January 26, 2021
Rexson came from two words such as:
Rex = latin for King; and
Son = from the old English word "sunu" which means a male child;
that simply means "Son of the King"

A sweet, awesome, guy who is very caring and selfless. He is a very talented musician and he is also very handsome. There are not any people like him and no one can really compare to him.
"That guy might be Rexson. We must give respect to him or else the King will be very mad onto us."
rexson by Ethylonian June 17, 2011

SAT Reasoning Test

The most complex, confusing, and most important high school test ever made. The company that makes it, CollegeBoard, makes it very tricky, and it is ABSOLUTELY the most important test in high school. Despite it's name, most of it is NOT reasoning, most of the test requires prior knowledge and skills.
WTH? CollegeBoard is giving me a test that doesn't even test beyond anything I learn in college. This test is rigged. The only people who get high scores on the test study for it, defeating it's purpose. So Why am I waking up early on a Saturday to take this again? The SAT reasoning test should be banned.
SAT Reasoning Test by BiggaNXT September 26, 2008

readonding 

Both reading and responding to a blog post. Combines the words reading, and responding.
Jack is a big fan of Jill's blog, that's why he's always readonding.
readonding by Hitter1015 March 17, 2011