The figurative language used in the given stanzas of amy lowell's "in excelsis is; Metaphor
Metaphor is simply a figure of speech that deals with the comparison of two objects that are unrelated but yet have some similarities. Now, the similarities are used for additional rhetorical effect and to capture the reader's attention.
Now, in the given stanzas we see the following comparisons using metaphor;
Read more about figure of Speech at; https://brainly.com/question/938979