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antenna

Definition

noun: a thin sensitive organ on the head of an insect, crab, etc., that is used mainly to feel and touch things
noun: one of a pair of slender movable segmented sensory organs on the head of insects, myriapods, and crustaceans
sometimes used figuratively
synonyms: feeler, aerial

Examples

a Senator with sensitive political 'antennae' [=a Senator who is very aware of political issues and attitudes]
a TV 'antenna' [=('chiefly Brit') 'aerial']

Movie clips

Movie quotes

(..) gas surrounding the black hole Sends out radio waves that can be used to make an image. Huge radio telescopes pick up these signals from space. The antenna will move in azimuth and elevation. Narrator: This one, at the m.I.T. Observatory near Boston, Is more than feet wide. (..)
2010 TvShow: How the Universe Works Title: Black Holes Season: 1 Episode 2