integral
//ˈɪntɪɡrəl//
Adjective
1
necessary and essential as a part of a whole
Teamwork is integral to the success of any project.
2
included as part of a whole rather than supplied separately
The camera has an integral flash that cannot be removed.
3
having or containing all parts that are necessary to be complete
The book is sold as an integral edition with all chapters included.
Antonym
Noun
1
a mathematical function representing the area under a curve or the accumulation of quantities
Students learn how to calculate integrals in calculus class.