free radical
(free radical, radical)
Princeton's WordNet
an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule
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radical
(free radical, radical)
Princeton's WordNet
an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule
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positron
(ˈpɒz ɪˌtrɒn)
Random House Webster's College Dictionary
an elementary particle with the same mass as an electron but a positive charge; the antiparticle of the electron.
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-tron
(ɒmp)
Random House Webster's College Dictionary
a combining form extracted from electron , used in the names of electron tubes (magnetron) and of devices for accelerating subatomic particles (cyclotron).
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ionic bond
(ionic bond, electrovalent bond, electrostatic bond)
Princeton's WordNet
a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
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electrovalent bond
(ionic bond, electrovalent bond, electrostatic bond)
Princeton's WordNet
a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
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electrostatic bond
(ionic bond, electrovalent bond, electrostatic bond)
Princeton's WordNet
a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
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electron microscopy
(electron microscopy)
Princeton's WordNet
microscopy with the use of electron microscopes
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orbit
(orbit, electron orbit)
Princeton's WordNet
the path of an electron around the nucleus of an atom
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electron orbit
(orbit, electron orbit)
Princeton's WordNet
the path of an electron around the nucleus of an atom
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electron microscopic
(electron microscopic)
Princeton's WordNet
of or relating to or involving an electron microscope
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ev
(ˈyuk sɪn, -saɪn)
Random House Webster's College Dictionary
Electron-volt.
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orbital
(ˈɔr bɪ tl)
Random House Webster's College Dictionary
the electron in that state.
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beauty quark
(bottom quark, beauty quark)
Princeton's WordNet
a quark with a charge of -1/3 and a mass about 10,000 times that of an electron
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delta ray
(delta ray)
Princeton's WordNet
an electron ejected from matter by ionizing radiation
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bottom quark
(bottom quark, beauty quark)
Princeton's WordNet
a quark with a charge of -1/3 and a mass about 10,000 times that of an electron
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mev
(myuz;)
Random House Webster's College Dictionary
million electron-volts.
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tev
(ˈtut nˌaɪz, ˈtyut-)
Random House Webster's College Dictionary
trillion electron-volts.
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sem
(ˈsɛlz nɪk)
Random House Webster's College Dictionary
scanning electron microscope.
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electronic
(ɪ lɛkˈtrɒn ɪk, ˌi lɛk-)
Random House Webster's College Dictionary
of or pertaining to electrons or to an electron.
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bev
(ˈbɜr ˈnwɑr)
Random House Webster's College Dictionary
billion electron-volts.
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vacuum tube
(for)
Random House Webster's College Dictionary
an electron tube from which almost all air or gas has been evacuated.
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truth quark
(top quark, truth quark)
Princeton's WordNet
a hypothetical quark with a charge of +2/3 and a mass more than 100,000 times that of an electron
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field-emission microscope
(field-emission microscope)
Princeton's WordNet
electron microscope used to observe the surface structure of a solid
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bevatron
(bevatron)
Princeton's WordNet
a cyclotron that accelerates protons up to several billion electron volts
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top quark
(top quark, truth quark)
Princeton's WordNet
a hypothetical quark with a charge of +2/3 and a mass more than 100,000 times that of an electron
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perturb
(perturb)
Princeton's WordNet
disturb or interfere with the usual path of an electron or atom
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photoelectron
(photoelectron)
Princeton's WordNet
an electron that is emitted from an atom or molecule by an incident photon
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lep
(ˈli əˌtɑrd)
Random House Webster's College Dictionary
large electron-positron collider.
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photoelectron
(ˌfoʊ toʊ ɪˈlɛk trɒn)
Random House Webster's College Dictionary
an electron emitted from a surface by photoemission.
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