[ ɪk'strɪnsɪk , ɛk- ]
■ adjective
1》 not essential or inherent.
2》 (of a muscle) having its origin some distance from the part which it moves.
Derivatives
~ally adverb
Origin
C16 (in the sense 'outward'): from late L. extrinsecus 'outward', based on exter 'outer'.