The term 'Scientific Ending' refers to two words that are commonly used in scientific terminology. The first word is 'OLOGY, ' which is a suffix used to denote a field of study or a branch of knowledge. For example, the word 'psychology' is derived from the suffix 'OLOGY, ' meaning the study of the mind and behavior. The second word is 'ARIA, ' which is a suffix used to denote a particular type of song or musical composition. For example, the word 'ARIA' is often used to refer to an operatic solo. Both of these suffixes are commonly used in scientific terminology to denote a specific field of study or type of composition.