Plural of aerial; multiple antennas for receiving or transmitting radio or television signals, or multiple acrobatic moves performed in the air.
From 'aerial' plus -s. As an antenna, it comes from the adjective 'aerial' (in the air) because the antenna extends into the air.
In the early days of television, rooftop aerials were like neighborhood trophies—families would compete to have the tallest or most elaborate antenna to catch the best signal!
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