sectionalization vs segmentation

sectionalization and segmentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sectionalization	Yes	No	No	No
segmentation	Yes	No	No	No

As nouns, sectionalization and segmentation are synonyms defined as:

sectionalization and segmentation: the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart

Other synonyms of sectionalization include division, partition, partitioning, sectionalisation.

sectionalization (noun)	segmentation (noun)
the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart	the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart
	(embryology) the repeated division of a fertilised ovum