Definition of "humpback" []

• See hunchback. (noun)
• A humped upper back. (noun)
• A humpback whale. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The back of the male just behind the head abruptly rises, forming a hump—hence the alternate name humpback salmon, or “humpy.”"
• "The pink salmon, also known as the humpback salmon, is the most abundant of the salmon species."
• "This humpback, which is a result of tuberculous inflammation of the spine, must not be confounded with the humpback caused by rickets."