Final answer:
The line from Ethan Frome is an example of imagery, as it creates a vivid picture in the reader's mind.
Step-by-step explanation:
The line from Ethan Frome is an example of the use of imagery. Imagery refers to the use of descriptive language that creates a vivid picture in the reader's mind. In this case, the line paints a picture of the hollow-backed bay and Ethan Frome throwing back his worn bearskin, allowing the reader to visualize the scene.
Learn more about Imagery in literature