ATOMICITY
\ɐtəmˈɪsɪti], \ɐtəmˈɪsɪti], \ɐ_t_ə_m_ˈɪ_s_ɪ_t_i]\
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Combining capacity of an element, number of atoms of hydrogen with which one of its atoms normally combines.
By Sir Augustus Henry
By Willam Alexander Newman Dorland
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Syn. : combining capacity quantivalence, valence, valency. The combining power of an element as compared with that of hydrogen; a number representing the greatest number of atoms of hydrogen which it will replace in a compound, or with which it is capable of combining, or twice the number of oxygen atoms with which one of its atoms can combine. The degrees of a. are expressed by the terms univalence, or the a. of a monad element, which replaces one atom of hydrogen; bivalence, or the a. of a diad element, replacing two atoms of hydrogen; trivalence, or the a. of a triad element; quadrivalence, or the a. of a tetrad element; quinquivalence, or the a. of a pentad element; sexvalence, or the a. of a hexad element; etc.
By Smith Ely Jelliffe
Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.