The term 'PREFIX WITH BUS OR SCIENCE' has the crossword solution of OMNI. The prefix OMNI- is derived from Latin and means 'all' or 'EVERY'. It is commonly used in English to refer to something that is all-encompassing or universal. It is often used in combination with words such as 'SCIENCE' or 'BUS' to indicate a broad scope or range. For example, an omnibus is a large BUS that can carry many passengers, while an omniscient being is one who knows all things.