One of the mysteries of the English language finally explained.
An advocate or supporter of social imperialism.
Characterized by or advocating social imperialism.
Early 20th century; earliest use found in The San Antonio Light. From social + imperialist. In use as adjective after Russian social-imperialističeskij, adjective. With the use as noun compare Russian social-imperialist, noun.
social imperialist/ˌsəʊʃl ɪmˈpɪərɪəlɪst/
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