What is the term for something that is related to winter?

The term that relates to winter is "hibernal." This word comes from the Latin "hibernalis," which means "pertaining to winter." It is often used to describe characteristics or phenomena that occur during or are associated with the winter season, such as hibernal weather or hibernal activities.

Understanding this term can be quite helpful for discussions about seasonal changes, animal behavior during winter, or even cultural references that involve the cold months. The precise nature of "hibernal" captures the essence of winter comprehensively, making it the correct choice in this context.