IPA: /ˌdɛrɪvəˈteɪʃən/
KK: /dɪˌrɪvəˈteɪʃən/
A process that changes a chemical compound into a related product, often to help identify it or analyze its properties.
The scientist used derivatization to improve the detection of the chemical in the sample.
Derivatization is formed from "derivare" (meaning to draw off or derive) and the suffix "-ization" (meaning the process of making or becoming). The word refers to the process of deriving a new compound from a parent compound.
Think of 'drawing off' ('derivare') to create something new, which is what 'derivatization' means — the process of creating a derivative.