Form was treated as something intrinsic, as the very essence of the thing.
source: WordNet 3.0
Inward; internal; hence, true; genuine; real; essential; inherent; not merely apparent or accidental; -- opposed to extrinsic; as, the intrinsic value of gold or silver; the intrinsic merit of an action; the intrinsic worth or goodness of a person.
source: Webster 1913
noun
A genuine quality.
source: Webster 1913
adjective satellite
situated within or belonging solely to the organ or body part on which it acts