Position of a figure [duplicate]

I'm having a few definitions and some graphics. I want to have the following structure

Definition1

Figure1

Definition2

Figure2

Definition3

Figure3

The problem is that the document looks like this:

Definition1

Figure1

Definition2

Definition3

An on the next page, I suddenly have both figures at the top

Figure2

Figure3

How can I achieve the positioning I want, without LaTeX repositioning the figures?

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