Conservation
Nuttall's Standard Dictionary of the English Language · 1890 · p. 44
kon-ser-va -shun, s. the keeping of a thing in safe or entire state. Conservation of energy Consistent, or force See Energy.
Bu kavram başka kaynaklarda da geçiyor
Adair's New Encyclopedia (1923)
French-English Dictionary of Military Terms (1918)
French-English and English-French Commercial Dictionary (1918)
Jack's Reference Book for Home and Office : An Encyclopaedia of General Information: General Information (1909)
The Student's Medical Dictionary (1896)
Chamber's Etymological of the English Language (1895)
An Illustrated Encyclopedic Medical Dictionary (1892)
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