OUTGROWTH
process, outgrowth, appendage
(noun) a natural prolongation or projection from a part of an organism either animal or plant; “a bony process”
emergence, outgrowth, growth
(noun) the gradual beginning or coming forth; “figurines presage the emergence of sculpture in Greece”
outgrowth, branch, offshoot, offset
(noun) a natural consequence of development
Source: WordNet® 3.1
Etymology
Noun
outgrowth (countable and uncountable, plural outgrowths)
Anything that grows out of something else.
A branch or offshoot of a plant.
An appendage of an animal.
A byproduct or consequence of an action or event.
Excessive growth.
Source: Wiktionary
Out"growth`, n.
Definition: That which grows out of, or proceeds from, anything; an
excrescence; an offshoot; hence, a result or consequence.
Source: Webster’s Unabridged Dictionary 1913 Edition