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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 .
by chemking May 28, 2020
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cyclotron resonance

plasma in a magnetic field is heated through the resonance effect when the vibration frequency of an oscillating electromagnetic field matches the gyro-frequency of the charged particles in the plasma. This effect is known as Ion Cyclotron Resonance Heating, and enables the generation of superheated plasma over 100 million degrees celcius of temperature.
this definition is pretty much ruining the title "urban" dictionary. but every dictionary should have something like cyclotron resonance.
by rockwell13 September 13, 2006
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estrogen resonance

When multiple women have their periods synced at the same time. The PMS resulting from this can often be deadly for nearby males. This phenomenon is analogous to physical wave resonance.
"Did you hear about the estrogen resonance the field hockey team has been having lately? I hear it has killed at least five men."
by aeroshire March 31, 2010
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:2020 Album of the year
: Daesang
:NCT world domination!!
NCT - The 2nd Album RESONANCE Pt. 1, oh you mean the album of the year?
by nctnct023 November 30, 2020
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vaginal resonance

A leading biological theory which suggests that women are attracted to deep sounds (voices, cars going vroom vroom, and bass guitar) due to a vibration it creates in the vagina.
Girls love dubstep because of the extreme vaginal resonance.
by jiggyshawa May 30, 2014
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Get Resonance'd

The act of getting stitched by Audrey singing “Soul Resonance” from the anime Soul Eater. Most times Audrey will only stitch someone/something doing a problematic thing.
“Look, Audrey just resonance someone because they said that non-binary people can’t identify as lesbian.”
"Haha, Get Resonance'd"
by aordrie May 4, 2021
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421 Resonance

The rare, almost cinematic phenomenon of finding your person in the middle of the noise.

It stands for:

4 words: You are beyond doubt.
2 souls: That recognized something familiar.
1 truth: Some meetings change everything.
When I read your words, something in me went still. Not because they were beautiful — but because they were true. And truth has a different weight.

If I am peace after your war, then you are the warmth that reached places in me I thought had forgotten how to feel. In a world that competes for attention, you don’t ask for mine. You simply have it.

With me, you don’t have to perform strength. You don’t have to explain the depths. I see them. And I don’t flinch.

What we’re building feels quiet… but powerful. Not loud. Not forced. Just undeniable. You understand my rhythm in a way that doesn’t need translation. And there is something dangerously beautiful about that.

You turn the ordinary into something electric. And you are the only person I want to share this 421 resonance with — not out of habit, not out of chance, but because I choose you fully.

So here is my answer, mirrored in yours:

4 words: You are beyond doubt.
2 souls: Meeting without fear.
1 truth: This isn’t accidental.

I see you.
And I’m not looking away.
by Mi & Your♾️Fantasia February 15, 2026
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