好词典

antennae

UK //ænˈten.iː//US //ænˈten.i//

词源

源自拉丁语 'antenna'(帆桁),后用于指昆虫触角(因其形状相似),17世纪后引申为无线电天线。

noun

❶ 昆虫或甲壳类动物头部的一对细长触角,用于感知周围环境、探测气味或触摸物体。

“The butterfly uses its antennae to detect the scent of flowers.”

(蝴蝶用触角探测花朵的气味。)

“Ants communicate by touching each other with their antennae.”

(蚂蚁通过触角相互触碰来交流。)

❶ 无线电或电视设备中用于接收或发射信号的金属杆状装置,即天线。

“The old radio had a retractable antenna for better reception.”

(旧收音机有一个可伸缩天线以获得更好的接收效果。)

“They installed a new antenna on the roof to get clearer TV signals.”

(他们在屋顶安装了新天线以获得更清晰的电视信号。)

同义词:feeler, aerial, receiver

常见短语

antennae up — 形容人保持高度警觉或对某事物特别关注的状态,源自昆虫竖起触角的动作。

“Investors had their antennae up for any changes in the stock market.”

(投资者对股市的任何变化都保持高度警觉。)