我想問呢個字點解~

網上用語，來自網上連線遊戲，指{新丁}或再上一層解作{咩都唔知的傻瓜}。

原形是Newbie，後來有不同的簡寫如Newb'，再引申成Noob。

Noob也有其他有趣的專題，請看：http://en.wikipedia.org/wiki/Noob

no-observable effect level
【化學】無效應劑量

no-observable effect level
【化學】無效應劑量


you can go here when you want to know about no-observable effect level :

http://en.wikipedia.org/wiki/No_observable_adverse_effect_level_(NOAEL)

noob(n)
no-observable effect level
【化學】無效應劑量

A newbie (also spelled noob, newb, or n00b in the leetspeak of internet culture) is a newcomer to a particular field, the term being commonly used on the internet, where it might refer to new users of a game, a newsgroup, the World Wide Web itself, or an operating system.
en.wikipedia.org/wiki/Noob

新「入行」者？

noob係no-observable effect level簡寫
係化學名詞 , 解無效應劑量