Medical Dictionary

1section

noun sec·tion \ˈsek-shən\

Medical 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
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