1. sect = TO cut, separate

2. verb
dissect
to cut apart for the purpose of scientific investigation

3. noun
intersection
the point at which two lines or roads meet and cross each other

4. bisect
verb
To cut into two equal pieces

5. insect
noun
a class of small arthropod animals, that have three separate sections to their bodies: head, thorax, and abdomen

6. sectional
noun
A couch that is made up of separate pieces

7. section
noun
a separate part of something

8. verb
trisect
to cut into three equal pieces

9. noun
vivisection
surgery on living animals; medical research that involves cutting into living animals to study organs, tissues, or diseases

10. verb
transect
to cut across something

11. noun
sector
a separate part of society, group, or area

12. insecticide
noun
A substance that destroys or kills insects

13. segment
verb
A separate piece of something