Small parts of something that has been divided into even smaller parts.
Subsegments are like tiny pieces of something bigger, like a small part of a toy.
Examples:
The orange can be divided into subsegments.
The book is divided into subsegments for each chapter.
She eats the subsegments of the orange first.
The subsegments of the puzzle are very small.
The subsegments of the cake are so tiny, you can't even see them.
The subsegments of the toy are all over the floor.