inflatantn.
/ɪnˈfleɪtənt/ rare.
That which inflates; an inflating agent.
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the world > matter > gas > air > [noun] > condition of being inflated > inflating > that which
inflater1884
inflatant1888
the world > space > extension in space > expansion or enlargement > [noun] > distension > inflation with air or gas > that which inflates or inflating agent
inflater1884
inflatant1888
1888 Pall Mall Gaz. 31 May 5/1 The use of this inflatant [coal-gas] limits military ballooning considerably.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2021).
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n.1888