decomposition

noun

1. (countable, uncountable)A biological process through which organic material is reduced to e.g. compost.
2. (countable, uncountable)The act of taking something apart, e.g. for analysis.

   “Speech decomposition into a periodic and a non-periodic part is a subject of considerable importance with applications in speech synthesis, […]”

3. (countable, uncountable)The splitting (of e.g. a matrix, an atom, or a compound) into constituent parts.