The Collaborative International Dictionary
Convulsionist
Convulsionist \Con*vul"sion*ist\, n. One who has convulsions; esp., one of a body of fanatics in France, early in the eighteenth century, who went into convulsions under the influence of religious emotion; as, the Convulsionists of St. M['e]dard.
Wiktionary
convulsionist
n. 1 One who has convulsions. 2 # One of a group of eighteenth-century fanatics in France who went into convulsions under the influence of religious emotion.
Usage examples of "convulsionist".
It is mere horse science, akin to the theories of the convulsionists in the geological kingdom, and of the believers in the supernatural origin of the species of plants and animals.