Solution of triangle not involving fractions (8)
I believe the answer is:
integral
'solution' is the definition.
The answer and definition can be both related to thinking as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'triangle not involving fractions' is the wordplay.
'triangle' can be anagrammed to 'INTEGRAL'.
Though, I'm unsure how this is indicated.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for integral that I've seen before include "Fundamental; function" , "United" , "Mathematical quantity" , "Unimpaired" , "Formed of constituent parts" .)