cross-sectional vs cross-section

cross-sectional and cross-section both are adjectives.

Word	Noun	Adjective	Verb	Adverb
cross-sectional	No	Yes	No	No
cross-section	No	Yes	No	No

As adjectives, cross-sectional and cross-section are synonyms defined as:

cross-sectional and cross-section: representing a plane made by cutting across something at right angles to its length

cross-sectional (adjective)	cross-section (adjective)
of or relating to a cross section	representing a plane made by cutting across something at right angles to its length
representing a plane made by cutting across something at right angles to its length