peripheral device

词形变化：

副词: peripherally |

同义词：

marginal | outer | outlying | minor | unimportant | superficial | circumferential | circumjacent | circumscribing | encircling | surrounding | circumambient | ambient | environal | circumfluent | unnecessary | unessential | add-on | equipment | extraneous | attachment | outside | device | outward | fringe | bordering | exterior | incidental | tangential | nonessential | sideline | secondary | computer peripheral | peripheral device |

反义词：

central |