Tetrad sentence example

tetrad
  • Those elements which are equivalent in combining or displacing power to a single atom of hydrogen are said to be univalent or monad elements; whilst those which are equivalent to two atoms of hydrogen are termed bivalent or dyad elements; and those equivalent to three, four, five or six atoms of hydrogen triad, tetrad, pentad or hexad elements.
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  • Figures in italics are derived from the tetrad survey.
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  • Many counties have published tetrad distribution maps of various groups - Worcestershire none.
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  • The atlas is provided with tetrad maps produced by the Records Center.
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  • The data are only fully comprehensive at the 10-km square level and not at the tetrad level.
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  • Most have proved to be new tetrad records and some have been new to that ten km square.
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  • Product: Tetrad ' Toledo ' ' Toledo ' is a stunning combination of fine hide and a luxurious soft fabric.
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  • The sporogenous tissue, which is referable to several archesporial cells, is surrounded by a tapetum, mostly derived from the sporogenous group. In the microsporangium all the mother-cells undergo the tetrad division, giving rise to the numerous microspores.
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  • This new unity firmly established the "narcoleptic tetrad" as the definitive diagnostic criteria for narcolepsy.
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