Argon
A Dictionary of Scientific Terms · 1927 · p. 3
A gaseous element found in the atmosphere in small amounts. Symbol: A.
Bu kavram başka kaynaklarda da geçiyor
Adair's new Encyclopedia (1923)
Hawkins' Electrical Dictionary (1915)
The American Dictionary and Cyclopedia (1910)
Jack's Reference Book for Home and Office : An Encyclopaedia of General Information: General Information (1909)
Chamber's Twientieth Century Dictionary (1908)
A Classical Dictionary (1904)
Pears Shilling Cyclopedia (1898)
The Student's Medical Dictionary (1896)
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