Definition of anal sac
- I don't think anyone truly knows why dogs have anal sacs, but the most prominent theory is that they are used as a marking scent.
- —Jim Berg, News Journal (Wilmington, Delaware), 24 June 2008
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
What made you want to look up anal sac? Please tell us where you read or heard it (including the quote, if possible).