extra- - Ondict

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extra-
extra- /ekstrə/

prefix

Language: Latin
Origin: extra 'outside', from exter; ⇨ external

1. outside or beyond:

extragalactic (=outside our galaxy)

extracellular (=outside a cell)
2. informal very or more than normal:

extra-large

extra-strong

extra-special

extra-

BrE

/ˈekstrə/

NAmE

/ˈekstrə/

prefix

(in adjectives 构成形容词)

outside; beyond 在…之外；超出；越出

◆extramarital sex婚外性行为

◆extraterrestrial beings外星人

(

informal

)

very; more than usual 非常；格外；十分

◆extra-thin特别瘦

◆extra-special十分特别

biodiversity, conservation, endanger, the environment, extinct, green, managed, species, sustainable, toxic