noun
substantialism
Philosophical doctrine that substances or entities have independent existence; used in ontology and metaphysics.
実体論は、存在の根本的なあり方を問う哲学の一分野です。
Substantialism is a branch of philosophy that inquires into the fundamental nature of existence.
Compound of 実体 (substance, entity) and 論 (theory, discourse). The exact historical derivation is uncertain; the term is used in modern Japanese philosophy to translate Western concepts of substantialism.