1) Adulterant 2) Adulterating 3) Extrinsic 4) Immaterial 5) Inorganic 6) Intervenient 7) Irrelevant 8) Orthogonal 1) Coming from the outside 2) External 3) Extraneous decoration 4) Immaterial 5) Impertinent 6) Irrelevant 7) Nonessential 8) Not essential 9) Not pertinent 10) Orthogonal 
• (a.) Not belonging to, or dependent upon, a thing; without or beyond a thing; not essential or intrinsic; foreign; as, to separate gold from extraneous matter.
Outside of the organism and not belonging to it. ... Origin: L. Extraneus ... (05 Mar 2000) ... 
Ex·tra'ne·ous adjective [ Latin extraneus , from extra . See Extra- , Strange .] Not belonging to, or dependent upon, a thing; without or beyond a thing; not essential or intrinsic; foreign; as, to separate gold from extraneous matter. « Nothing is admitted 
Type: Term Pronunciation: eks-trā′nē-ŭs Definitions: 1. Outside of the organism and not belonging to it.
[adj] - not belonging to that in which it is contained 2. [adj] - not pertinent to the matter under consideration 3. [adj] - not essential
foreign adjective not belonging to that in which it is contained; introduced from an outside source; `water free of extraneous matter`; `foreign particles in milk`
introduced or coming from without; not belonging or proper to a thing; external; foreign: extraneous substances in our water. · not pertinent; irrelevant: an extraneous remark; extraneous decoration.
[SAT terms] not pertinent to the matter under consideration[SAT terms] not belonging to that in which it is contained