cell envelope
envelope that surrounds a bacterial cell and includes the cytoplasmic membrane and everything external, encompassing the periplasmic space, cell wall, and outer membrane if present
en-US/ˈsɛl ˌɑnvəˌloʊp/
en-GB/ˈsɛl ˈɛnvələʊp/
envelope that surrounds a bacterial cell and includes the cytoplasmic membrane and everything external, encompassing the periplasmic space, cell wall, and outer membrane if present