What does the term 'regurgitate' mean?

The term 'regurgitate' primarily means to bring back up substances from the stomach to the mouth, which aligns closely with the definition of vomit. In various contexts, regurgitation can refer to the act of expelling contents that have been swallowed but have not fully undergone digestion, similar to the natural process seen in some animals where ingested food is brought back up for further processing or feeding their young. This term can be used in a broader sense, including in medical situations involving digestive issues or even in academic contexts where one might repeat information without full comprehension.

The other choices focus on different actions related to eating and processing food. 'Spit' refers to expelling saliva, which is not the same as regurgitation, as it does not imply bringing up previously ingested substances. 'Digest' involves the breakdown of food in the stomach and intestines, which is the opposite of regurgitation, while 'ingest' means to take in food or substances, not to expel them back.