† thermogenn.
Obsolete. rare. Apparently only attested in dictionaries or glossaries.
A name for the fluid formerly supposed to exist as the material substance of heat; = caloric n. 1.
ΚΠ
1847 in Webster's Amer. Dict. Eng. Lang.
This entry has not yet been fully updated (first published 1912; most recently modified version published online June 2021).
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n.1847