Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Extremely fine, especially of the hyperfine structure in the spectra of atoms and molecules.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective extremely fine or thin, as in a spectral line split into two or more components

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

hyper- +‎ fine

Examples

  • The magnetic field separates these levels into two "hyperfine" states.

    New Scientist - Online News

  • Have you a device by which I might measure the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom?

    Measurement

  • The second is now defined as “the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.”

    Eureka: The Ultimate Clock

  • The second was redefined in 1967 to be the time it takes for 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.

    A Great Leap…Forward?

  • He did his thesis work with Professor Robert T. Schumacher using a self-made electron microwave spin resonance spectrometer to study the hyperfine spectrum of interstitial hydrogen atoms in CaF2 crystals.

    John L. Hall - Biography

  • Unit of time second The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.

    International System of Units (SI)

  • They feature a picture of the solar system, a picture of the probes and a pictorial representation of the hyperfine transition of neutral hydrogen.

    Earth to Aliens: We're a Bunch of Dorks

  • That hyperfine distinction worried Justice Sandra Day O'Connor, but she suggested few lawmakers "would be so naive as to enact a law directly prohibiting or burdening a religious practice as such."

    A Chicken on Every Altar?

  • They feature a picture of the solar system, a picture of the probes and a pictorial representation of the hyperfine transition of neutral hydrogen.

    Lore Sj

  • The second is the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom.

    Second

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