Hyperonyms
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14619225-n:
(physics and chemistry) the smallest component of an element having the chemical properties of the element
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Hyponyms
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14640890-n:
a hydrogen atom in an acid that forms a positive ion when the acid dissociates
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Hyponyms
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14641046-n:
an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
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Meronyms
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09307719-n:
a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus
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Glosses
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14619225-n:
(physics and chemistry) the smallest component of an element having the chemical properties of the element
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Glosses
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14640434-n:
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
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Glosses
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00025238-a:
being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7)
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Glosses
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05034473-n:
(chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
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Glosses
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11437111-n:
a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond
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Glosses
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13494707-n:
a chemical process that adds hydrogen atoms to an unsaturated oil
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Glosses
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13523503-n:
(astronomy) the cosmic synthesis of atoms more complex than the hydrogen atom
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Glosses
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14601646-n:
organic compound in which halogen atoms have been substituted for hydrogen atoms in an alkane
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Glosses
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14611031-n:
an acid containing only one replaceable hydrogen atom per molecule
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Glosses
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14611158-n:
an acid containing two replaceable hydrogen atoms per molecule
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Glosses
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14611279-n:
a salt derived by replacing two hydrogen atoms per molecule
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14611397-n:
an acid containing three replaceable hydrogen atoms per molecule
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14611521-n:
a radioactive isotope of hydrogen; atoms of tritium have three times the mass of ordinary hydrogen atoms
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Glosses
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14611679-n:
an acid containing four replaceable hydrogen atoms per molecule
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Glosses
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14617715-n:
a methyl with the hydrogen atom replaced by an amino radical
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Glosses
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14620257-n:
a compound in which the hydrogen atoms of a hydrocarbon have been replaced by bromine and other halogen atoms; very stable; used in fire extinguishers although it is thought to release bromine that depletes the ozone layer
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Glosses
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14640890-n:
a hydrogen atom in an acid that forms a positive ion when the acid dissociates
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Glosses
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14691231-n:
a compound derived from ammonium with hydrogen atoms replaced by organic groups; used as surface-active agents, disinfectants, and in drugs
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Glosses
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14710325-n:
the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
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Glosses
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14739004-n:
a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals
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Glosses
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14740587-n:
a fatty acid whose carbon chain cannot absorb any more hydrogen atoms; found chiefly in animal fats
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Glosses
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14740915-n:
a fatty acid whose carbon chain can absorb additional hydrogen atoms
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Glosses
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14774894-n:
a closed chain of 6 carbon atoms with hydrogen atoms attached
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14775729-n:
a salt of carbonic acid (containing the anion HCO3) in which one hydrogen atom has been replaced; an acid carbonate
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Glosses
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14871968-n:
a halocarbon in which some hydrogen atoms have been replaced by fluorine; used in refrigerators and aerosols
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Glosses
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14914945-n:
the anion OH having one oxygen and one hydrogen atom
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Glosses
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14915072-n:
a methyl with hydroxide replacing the hydrogen atoms
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Glosses
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14994824-n:
a class of fats having long carbon chains with many double bonds unsaturated with hydrogen atoms; used in some margarines; supposedly associated with low blood cholesterol
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