IPA: /ˌɪn.təˈneɪ.ʃən/
KK: /ɪnˈtɛnəˌreɪʃən/
The process of making something soft or tender, often by soaking or heating.
The inteneration of the meat made it much easier to chew and enjoy.
Inteneration is formed from "in-" (meaning into or within) and "tener" (from Latin "tener", meaning tender or soft) and the suffix "-ation" (indicating a process or action). The word describes the process of making something tender or soft.
Think of 'tender' ('tener') being made 'into' ('in-') something softer — that's what inteneration means.