This is a relatively youthful crater, with a well-defined outer rim and a terraced inner wall. Nevertheless, the outer rim has been marked by subsequent impacts. A smaller crater lies along the rim edge where Ioffe is joined to Fridman. There is also a small craterlet along the northwestern rim. The interior floor is relatively level, with the exception of a low, uneven ridge of material that stretches from just east of the midpoint to the south-southwestern inner wall. The interior is free of impacts of note.
It was named after Abram Ioffe, a prominent Russian/Soviet scientist.
References
Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID122125855.