What figure of speech is used in the bold lines of the poem What happens to a dream deferred (put aside) Does it dry up like a raisin in the sun?

The figure of speech used in these lines is a simile, as it directly compares the act of putting aside a dream to the idea of a raisin drying up in the sun. The simile creates a visual and sensory image that helps to emphasize the impact of neglecting or delaying one's dreams.