Simile is a rhetorical figure used in literature to compare two things, objects or people. Its difference with metaphors is its simplicity, a more complex comparison would be place in a metaphor level.
Othello in the novel was very handsome and well spoken. But he was a moor so he was treated differently than other lieutenants in the military. Not only that but Desdemona's father does not like him because he is a moor.
