byproduct

by·prod·uct

or by-prod·uct B0591900 (bī′prŏd′əkt)n.1. Something produced in the making of something else.2. A secondary result; a side effect.

Thesaurus

Noun	1.	byproduct - a secondary and sometimes unexpected consequenceby-productconsequence, effect, result, upshot, outcome, event, issue - a phenomenon that follows and is caused by some previous phenomenon; "the magnetic effect was greater when the rod was lengthwise"; "his decision had depressing consequences for business"; "he acted very wise after the event"epiphenomenon - a secondary phenomenon that is a by-product of another phenomenon
	2.	byproduct - a product made during the manufacture of something elsespin-off, by-productproduct, production - an artifact that has been created by someone or some process; "they improve their product every year"; "they export most of their agricultural production"

or by-product
nounSomething derived from another:derivation, derivative, descendant, offshoot, outgrowth, spinoff.

byproduct