ethidene
The American Dictionary and Cyclopedia · 1910 · p. 42
[Eng., ., ethid ( e ), and suff.- ene (Chem.) (q. v.).] Chem. The same as ETHYL I DENE (q. v.).
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 (1892)
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