Hexad
Chamber's Twientieth Century Dictionary · 1908 · p. 49
hek′sad, n. a series of six numbers: ( chem. ) an element or radical with the combining power of six units—i.e. of six atoms of hydrogen.
Bu kavram başka kaynaklarda da geçiyor
The American Illustrated Medical Dictionary (1913)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
The Student's Medical Dictionary (1896)
An Illustrated Encyclopedic Medical Dictionary (1893)
The Century Dictionary: The Encyelopedic Lexicon of the English Language (1887)
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