dissect = to cut open something, especially a dead body or a plant, and study its structure.
What does `cut open' mean in this sentence?
Please explain it.
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What does cut open mean in this sentence?
Cut open means make a cut to see what's inside doing it in a way that would not result in dividing the thing you are cutting into two pieces.
When you cut bread, you get pieces of bread. When you cut open a frog, you still have it whole, but with a hole.