Dreye权威释义

n.

【物】离子
You can buy a negative ion hair dryer for less than 1000 RMB.
目前流行的负离子吹风机，一台还不到一千块。

同义参见:

以上来源于：《英汉大辞典》

/ˈʌɪən/

n.

an atom or molecule with a net electric charge through loss or gain of electrons, either positive (a cation) or negative (an anion).

C19: from Gk, neut. pres. part. of ienai ‘go’.

以上来源于：《简明牛津英语词典》

以上来源于：《英汉医学词典》