• Webster's Revised Unabridged Dictionary
    • a Fumaric (Chem) Pertaining to, or derived from, fumitory (Fumaria officinalis).
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Century Dictionary and Cyclopedia
    • fumaric In chem., pertaining to or obtained from fumitory, a plant of the genus Fumaria.
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In literature:

C., but cannot be distilled safely as it decomposes violently, giving nitrogen and ethyl fumarate.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4" by Various
When heated with concentrated hydrobromic or hydriodic acids, it is converted into fumaric acid.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3" by Various

In news:

The pharmaceutical giant said Thursday that Dulera Inhalation Aerosol (mometasone furoate and formoterol fumarate dihydrate) has received approval from the Food and Drug Administration.
Each inhalation contains 5 mcg of formoterol fumarate and either 100 mcg or 200 mcg of mometasone furoate.
According to The Daily Mail, he won the 1937 Nobel Prize in Physiology and Medicine for "his discoveries in connection with the biological combustion processes, with special reference to vitamin-C and the catalysis of fumaric acid".
Data Support Tenofovir Alafenamide Fumarate as Component of Future Single Tablet HIV Regimens.