Definition of periodic table in English:

periodic table

Line breaks: peri|od¦ic table

noun

Chemistry
  • A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
    More example sentences
    • This weight is the number assigned to each of the chemical elements in the periodic table.
    • Going down a column on the periodic table the atomic numbers differ by eight between rows one and two and two and three.
    • When you move down the periodic table, as the atomic numbers increase, the elements become rarer.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody