adj.
  
/
ˈɪntɪgr(ə)l, 
ɪnˈtɛgr(ə)l/
  
- necessary to make a whole complete; fundamental. 
▸included as part of a whole.
 ▸having all the parts necessary to be complete.
 - Mathematics  of or denoted by an integer or integers.
 
n.
  
/
ˈɪntɪgr(ə)l/
 
Mathematics  a function of which a given function is the derivative, and which may express the area under the curve of a graph of the function.
 
  Derivative
  
    - integrality n.
  - integrally adv.
 
   
  Usage
  There are two possible pronunciations for integral as an adjective : one with the stress on the in- and the other with the stress on the -teg-. In British English, the second pronunciation is sometimes frowned on, but both are broadly accepted as standard.
  Etymology
  C16: from late L. integralis, from integer (see integer).