The philosophy or doctrine of Plotinus; Plotinian ideas and teachings.
Origin
Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From the name of Plotinus + -ism, probably after Plotinist.
Definition of Plotinism in US English:
Plotinism
nounˈplɒtɪnɪz(ə)m
The philosophy or doctrine of Plotinus; Plotinian ideas and teachings.
Origin
Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From the name of Plotinus + -ism, probably after Plotinist.