The term 'Atmospheric Prefix' refers to a set of words that are used to describe the atmosphere. The three solutions for this term are AERI (4 letters), AER (3 letters), and AEER (4 letters). AERI is derived from the Greek word for AIR, aer, and means 'of the AIR'. AER is also derived from the Greek word for AIR and means 'AIR'. AEER is an acronym for 'Atmospheric Environment and Energy Research' and is used to refer to research related to the atmosphere.