nucleoid
/ˈnjuːklɪɔɪd/adjective
Like a nucleus in form or appearance. Later (Microbiology ): relating to or of the nature of a nucleoid.
noun
Biology. A structure comprising the genetic material of a prokaryotic cell, virus, or cellular organelle.
Origin
Mid 19th century; earliest use found in John Ogilvie (1797–1867), lexicographer. From nucleus + -oid. In sense B. 1 after German Nucleoïd.