segmentation vs sectionalization

segmentation and sectionalization both are nouns.

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

As nouns, segmentation and sectionalization are synonyms defined as:

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

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

segmentation (noun)	sectionalization (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