The pyriform lobe, also known as the piriform lobe, is a structure in the mammalian brain that is primarily involved in the processing of olfactory information. The word "pyriform" comes from the Latin word "pyrum," meaning pear, and refers to the lobe's shape, which resembles that of a pear. Synonyms for the pyriform lobe include the olfactory cortex, the sensory cortex, and the limbic cortex. These terms all refer to the parts of the brain responsible for processing sensory information, including smell, taste, and touch. Understanding the different synonyms for this brain structure can help scientists better understand its function and role in various cognitive and behavioral processes.