section

¹sec·tion

noun \ˈsek-shən\

Definition of SECTION

1

: the action or an instance of cutting or separating by cutting; especially : the action of dividing (as tissues) surgically <nerve section> <abdominal section>—see cesarean section

2

: a natural subdivision of a taxonomic group

3

: a very thin slice (as of tissue) suitable for microscopic examination