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Reductionism

noun

Noun

1
An approach to studying complex systems or ideas by reducing them to a set of simpler components. countable, uncountable
2
the analysis of complex things into simpler constituents wordnet
3
A philosophical position which holds that a complex system is nothing but the sum of its parts, and that an account of it can be reduced to accounts of individual constituents. In a reductionist framework, the phenomena that can be explained completely in terms of relations between other more fundamental phenomena are called "epiphenomena". countable, uncountable
4
a theory that all complex systems can be completely understood in terms of their components wordnet

From reduction + -ism.

Unscramble this word: reductionism