peripheral
词形变化：
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 |
词义辨析：
同义:
a.周界的, 边缘的; 包围的; 周围的
circumferential
outlying
outer
marginal
surrounding
circumjacent
circumscribing
encircling
ambient
circumambient
environal
circumfluent
a.外表面的, 不重要的
superficial
unimportant
minor
unessential
unnecessary
n.附件, 设备
add-on
attachment
equipment
device
同义参见:
outward
extraneous
outside