Poetic diction
Poetic diction is the term used to refer to the linguistic style, the vocabulary, and the metaphors used in the writing of poetry. In the Western tradition, all these elements were thought of as properly different in poetry and prose up to the time of the Romantic revolution, when William Wordsworth challenged the distinction in his Romantic manifesto, the Preface to the second (1800) edition of Lyrical Ballads (1798).