Definitions for "HEIs"
Keywords:  delisle, imbrium, herschel, mare, lunar
Heis is a small lunar impact crater that is located in the western part of the Mare Imbrium. It is located to the northeast of Delisle crater, and south of C. Herschel crater.
Higher Education Institutions – these encompass colleges of higher education as well as universities.
Higher Education Institutions (universities and higher education institutions)