dissected is a form of:

Dissect



verb
1.
(TRANSITIVE) (To cut apart, to examine [a theory etc.], part by part, to analyze closely) dissect an animal វះកាត់ពិនិត្យ, ញែកធាតុ
Example: The biology class dissected monkeys last week, The teacher dissected his report.dissect a problem ធ្វើវិភាគដោយល្អិតល្អន់
2.
(វេជ្ជសាស្ត្រ) វះកាត់ដើម្បីពិនិត្យមើល, វះពុះបើកចំហ