What literary term is bellonas used in Macbeth?

The term "Bellona" in Macbeth is an example of apostrophe, a figure of speech in which a speaker directly addresses someone or something that is absent, dead, or inanimate.

In the play, Macbeth utters the line "Bellona's bridegroom, lapped in proof," (Act I, Scene II, lines 55-56) referring to himself as a warrior ready for battle. Bellona is the Roman goddess of war, and by addressing her, Macbeth evokes the power and ferocity associated with her.

While Bellona herself is not present, Macbeth directly speaks to her, calling upon her strength and imagery to emphasize his own warlike nature and ambition.