storably en · ADV
Etymology
From storable + -ly.
Meanings
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(not-comparable, rare) In a storable manner.
Also, both hydrogen and helium (the next-lightest gas) would require weighty cooling systems to keep them storably liquid.
1996, Charles Reynell, The Economist:1997, U.S. Department of Commerce, Patent and Trademark Office, Official Gazette of the United States Patent and Trademark Office: Patents A container for storably receiving an ink jet cartridge including a recording head section for discharging ink from a plurality of ink discharging orifices and an ink storing section having ink to be fed to said recording head section […]