con ‧ vo ‧ lu ‧ tion /ˌkɒnvəˈluːʃ ə n $ ˌkɑːn-/ BrE AmE noun [countable usually plural]
1 . the complicated details of a story, explanation etc, which make it difficult to understand
convolution of
the endless convolutions of the plot
2 . a fold or twist in something which has many of them
convolution of
the many convolutions of the small intestine