What does Fermi mean?

Definitions for Fermi
ˈfɜr mi, ˈfɛər-fer·mi

This dictionary definitions page includes all the possible meanings, example usage and translations of the word Fermi.

Princeton's WordNet

  1. femtometer, femtometre, ferminoun

    a metric unit of length equal to one quadrillionth of a meter

  2. Fermi, Enrico Ferminoun

    Italian nuclear physicist (in the United States after 1939) who worked on artificial radioactivity caused by neutron bombardment and who headed the group that in 1942 produced the first controlled nuclear reaction (1901-1954)


  1. ferminoun

    A unit of length equal to one femtometer or femtometre (10 m).

  2. Ferminoun

    The physicist Enrico Fermi.


  1. fermi

    Enrico Fermi (Italian: [enˈriːko ˈfermi]; 29 September 1901 – 28 November 1954) was an Italian (later naturalized American) physicist and the creator of the world's first nuclear reactor, the Chicago Pile-1. He has been called the "architect of the nuclear age" and the "architect of the atomic bomb". He was one of very few physicists to excel in both theoretical physics and experimental physics. Fermi was awarded the 1938 Nobel Prize in Physics for his work on induced radioactivity by neutron bombardment and for the discovery of transuranium elements. With his colleagues, Fermi filed several patents related to the use of nuclear power, all of which were taken over by the US government. He made significant contributions to the development of statistical mechanics, quantum theory, and nuclear and particle physics. Fermi's first major contribution involved the field of statistical mechanics. After Wolfgang Pauli formulated his exclusion principle in 1925, Fermi followed with a paper in which he applied the principle to an ideal gas, employing a statistical formulation now known as Fermi–Dirac statistics. Today, particles that obey the exclusion principle are called "fermions". Pauli later postulated the existence of an uncharged invisible particle emitted along with an electron during beta decay, to satisfy the law of conservation of energy. Fermi took up this idea, developing a model that incorporated the postulated particle, which he named the "neutrino". His theory, later referred to as Fermi's interaction and now called weak interaction, described one of the four fundamental interactions in nature. Through experiments inducing radioactivity with the recently discovered neutron, Fermi discovered that slow neutrons were more easily captured by atomic nuclei than fast ones, and he developed the Fermi age equation to describe this. After bombarding thorium and uranium with slow neutrons, he concluded that he had created new elements. Although he was awarded the Nobel Prize for this discovery, the new elements were later revealed to be nuclear fission products. Fermi left Italy in 1938 to escape new Italian racial laws that affected his Jewish wife, Laura Capon. He emigrated to the United States, where he worked on the Manhattan Project during World War II. Fermi led the team at the University of Chicago that designed and built Chicago Pile-1, which went critical on 2 December 1942, demonstrating the first human-created, self-sustaining nuclear chain reaction. He was on hand when the X-10 Graphite Reactor at Oak Ridge, Tennessee, went critical in 1943, and when the B Reactor at the Hanford Site did so the next year. At Los Alamos, he headed F Division, part of which worked on Edward Teller's thermonuclear "Super" bomb. He was present at the Trinity test on 16 July 1945, where he used his Fermi method to estimate the bomb's yield. After the war, Fermi served under J. Robert Oppenheimer on the General Advisory Committee, which advised the Atomic Energy Commission on nuclear matters. After the detonation of the first Soviet fission bomb in August 1949, he strongly opposed the development of a hydrogen bomb on both moral and technical grounds. He was among the scientists who testified on Oppenheimer's behalf at the 1954 hearing that resulted in the denial of Oppenheimer's security clearance. Fermi did important work in particle physics, especially related to pions and muons, and he speculated that cosmic rays arose when material was accelerated by magnetic fields in interstellar space. Many awards, concepts, and institutions are named after Fermi, including the Enrico Fermi Award, the Enrico Fermi Institute, the Fermi National Accelerator Laboratory (Fermilab), the Fermi Gamma-ray Space Telescope, and the synthetic element fermium, making him one of 16 scientists who have elements named after them. Fermi tutored or directly influenced no fewer than eight young researchers who went on to win Nobel Prizes.


  1. fermi

    Fermi is a unit of measurement in physics, named after the physicist Enrico Fermi, used to quantify extremely small distances. Also known as a femtometer, it is equivalent to 10^-15 meters and is primarily used in nuclear physics to measure the size of atomic nuclei. The term "Fermi" is also often associated with Fermi's paradox, a scientific paradox regarding the existence of extraterrestrial life and Fermi energy, a concept in Quantum Mechanics involving the energy levels of electrons in a fermionic system.


  1. Fermi

    Fermi is a large lunar crater of the category named a walled plain. It lies on the far side of the Moon and can not be viewed from the Earth. Thus this feature must be viewed from an orbiting spacecraft. The most notable aspect of Fermi is that the large and prominent crater Tsiolkovskiy intrudes into its southeastern rim. Unlike Tsiolkovskiy, however, the interior of Fermi is not covered by dark basaltic lava, and so it is barely distinguishable from the surrounding rugged and battered terrain. If it were located on the near side of the Moon, however, this would be one of the largest visible craters, with a dimension roughly equal to the crater Humboldt, lying several hundred kilometers to the west-southwest. This formation has been significantly eroded and damaged by subsequent impacts, and several notable craters lie across the rim and within the basin. Delporte is the most notable of these, lying across the northwest rim. Just to the east and inside the northern rim of Fermi is Litke. The smaller crater Xenophon is centered across the southern rim. In the southern half of the floor are the craters Diderot and Babakin. The rim, where it survives, is the most intact along the northern half. The southern half of the rim has been nearly obliterated, forming an irregular stretch of ground. The interior floor of Fermi has been modified by the creation of Tsiolkovskiy, with striations in the northeastern floor of Fermi, and parallel ridges along the western rim of Tsiolkovskiy. The remaining sections of the floor is somewhat more level, although pock-marked by myriads of tiny craterlets. The central section of the floor in particular has several clustered crater formations.

How to pronounce Fermi?

How to say Fermi in sign language?


  1. Chaldean Numerology

    The numerical value of Fermi in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of Fermi in Pythagorean Numerology is: 6

Examples of Fermi in a Sentence

  1. Gabriele Ponti:

    The chimneys are the exhaust pipes connecting the activity of the galactic center with the Fermi bubbles.

  2. Chris Harrison:

    There is a supermassive black hole at the center of our Milky Way, there is now good evidence that this black hole has driven large amounts of energy into the galaxy in the past, through the so-called ‘Fermi Bubbles,’ as well as other evidence. It is likely that billions of years ago the Milky Way was forming stars much more rapidly and the black hole may have played a role in shutting this down. However, this is not well understood. It is worth pointing out that the galaxies where we believe supermassive black holes have had the most influence are ‘dead’ with little-to-no stars forming. In contrast, the Milky Way is still forming stars (around one per year).

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"Fermi." Definitions.net. STANDS4 LLC, 2024. Web. 2 Mar. 2024. <https://www.definitions.net/definition/Fermi>.

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    the largest tarsal bone; forms the human heel
    • A. tithe
    • B. exponent
    • C. congius
    • D. calcaneus

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