What is another word for out-growth?
Pronunciation: [ˈa͡ʊtɡɹˈə͡ʊθ] (IPA) 
Out-growth refers to something that grows out of or beyond another thing, often in a physical sense. Synonyms for out-growth include bulge, protrusion, extension, appendix, offshoot, and excrescence. These words can be used in different contexts, such as the bulge of a tree root, the protrusion of a tumor, the extension of a building, the appendix of a book, the offshoot of a branch, or the excrescence of a wart. Each of these terms highlights a different aspect of what it means to be an out-growth, whether it's something that is attached to or growing outward from something else.
