premonitor

美 [pr?'m?n?t?] 　英 [pr?'m?n?t?]

• n.預(yù)先警告[告誡]者；預(yù)兆
• 網(wǎng)絡(luò)征兆；前兆；預(yù)先警告者

英漢解釋

n.	1. 預(yù)先警告[告誡]者 2. 預(yù)兆,征兆

例句

This means that during the wenchuan earthquake having a premonitor, there is a obvious ionospheric anomaly.

表明汶川地震發(fā)生前兆期間，電離層出現(xiàn)了明顯的異常現(xiàn)象。