IPA: /ˈɪŋɡroʊθ/
KK: /ˈɪŋˌɡroʊθ/
A process or result of something growing inward or into a space, often filling a void or gap.
The ingrowth of the tissue helped to heal the wound more quickly.
Ingrowth is formed from "in-" (meaning into) and "growth" (from Old English "growan", meaning to grow). The word describes the process of growing into something, often used in biological or medical contexts.
Think of something 'growing into' ('in-') a space or structure — that's what ingrowth means.