What is the meaning of Antenna?

An appendage used for sensing on the head of an insect, crab, or other animal.

An apparatus to receive or transmit electromagnetic waves and convert respectively to or from an electrical signal.

The faculty of intuitive astuteness.

A fragment of an oligosaccharide

The spar to which a lateen sail is attached, which is then hoisted up the mast.

For multiple feelers the Anglicised plural, antennas, is used only rarely in scholarly works in the life sciences. In other subjects and in less formal settings, antennas is found with increased frequency.

For multiple aerials both plural forms are acceptable in scholarly works. The Latinate plural, antennae, is rarer in less formal settings.

Some make a distinction between an antenna and an aerial, with the former used to indicate a rigid structure for radio reception or transmission, and the latter consisting of a wire strung in the air. For those who do not make a distinction, antenna is more commonly used in the United States and aerial is more commonly used in the United Kingdom.

For the faculty of intuitive astuteness, the Latinate plural is used most frequently but both forms are found.

flagpole

yard

device to receive or transmit radio signals: aerial (UK), antenna (US)

feeler organ on the head of an insect: antenna

yard on a ship

antenna in insects etc.

definite feminine singular of antenne

definite singular of antenne

Source: wiktionary.org