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elementary particle collapse: (physics) a particle that is less complex than an atom; regarded as constituents of all matter

proton collapse: a stable particle with positive charge equal to the negative charge of an electron

neutron collapse: an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus

alpha particle collapse: a positively charged particle that is the nucleus of the helium atom; emitted from natural or radioactive isotopes

hydrogen bomb collapse: a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium

meson collapse: an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0

ionization collapse: the process of ionizing; the formation of ions by separating atoms or molecules or radicals or by adding or subtracting electrons from atoms by strong electric fields in a gas; the condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge); "the ionization of a gas"

bombardment collapse: the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays)

photon collapse: a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle

tracer collapse: ammunition whose flight can be observed by a trail of smoke; (radiology) any radioactive isotope introduced into the body to study metabolism or other biological processes; an instrument used to make tracings; an investigator who is employed to find missing persons or missing goods

accelerator collapse: a valve that regulates the supply of fuel to the engine; a scientific instrument that increases the kinetic energy of charged particles; a pedal that controls the throttle valve; "he stepped on the gas"

beta particle collapse: a high-speed electron or positron emitted in the decay of a radioactive isotope

microcosmic collapse: relating to or characteristic of a microcosm; "the microcosmic world of business"

molecular collapse: relating to or produced by or consisting of molecules; "molecular structure"; "molecular oxygen"; "molecular weight is the sum of all the atoms in a molecule"

infinitesimal collapse: (mathematics) a variable that has zero as its limit; infinitely or immeasurably small; "two minute whiplike threads of protoplasm"; "reduced to a microscopic scale"

cleavage collapse: the act of cleaving or splitting; the line formed by a groove between two parts (especially the separation between a woman's breasts); (embryology) the repeated division of a fertilised ovum; the breaking of a chemical bond in a molecule resulting in smaller molecules; the state of being split or cleft; "there was a cleavage between the liberal and conservative members"

unitary collapse: characterized by or constituting a form of government in which power is held by one central authority; "a unitary as opposed to a federal form of government"; of or pertaining to or involving the use of units; "a unitary method was applied"; "established a unitary distance on which to base subsequent calculations"; relating to or characterized by or aiming toward unity; "the unitary principles of nationalism"; "a unitary movement in politics"

target collapse: sports equipment consisting of an object set up for a marksman or archer to aim at; a reference point to shoot at; "his arrow hit the mark"; the location of the target that is to be hit; intend (something) to move towards a certain goal; "He aimed his fists towards his opponent's face"; "criticism directed at her superior"; "direct your anger towards others, not towards yourself"

ray collapse: cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins; any of the stiff bony rods in the fin of a fish; a branch of an umbel or an umbelliform inflorescence; (mathematics) a straight line extending from a point; emit as rays; "That tower rays a laser beam for miles across the sky"

either collapse: after a negative statement used as an intensive meaning something like `likewise' or `also'; "he isn't stupid, but he isn't exactly a genius either"; "I don't know either"; "if you don't order dessert I won't either"

chain reaction collapse: a series of chemical reactions in which the product of one is a reactant in the next; a self-sustaining nuclear reaction; a series of nuclear fissions in which neutrons released by splitting one atom leads to the splitting of others

streamer collapse: a newspaper headline that runs across the full page; light that streams; "streamers of flames"

atomization collapse: annihilation by reducing something to atoms; separating something into fine particles

subatomic collapse: of dimensions smaller than atomic dimensions; of or relating to constituents of the atom or forces within the atom; "subatomic particles"; "harnessing subatomic energy"

nucleus collapse: a part of the cell containing DNA and RNA and responsible for growth and reproduction; any histologically identifiable mass of neural cell bodies in the brain or spinal cord; the positively charged dense center of an atom; (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail

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