antenna - Dictionary Definition : Vocabulary.com

An antenna is a feeler found on the head of a bug. You know, the gross, creepy, pointy things they wave around and use as feelers or sensors. An antenna is also a device that sends radio and television signals.

The singular noun antenna is just one of the feelers on a bug’s head — a sensory wand the insect waves around to check out its surroundings. The plural of this antenna is antennae. (Those Greeks and their funny words!) The singular noun antenna is also the thing on top of your television or radio. The plural of this antenna is antennas.

PRIMARY MEANINGS OF: antenna

1	n	one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste
2	n	an electrical device that sends or receives radio or television signals

FULL DEFINITIONS OF: antenna

1

n one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste

Synonyms:: feeler

Type of:: tentacle
any of various elongated tactile or prehensile flexible organs that occur on the head or near the mouth in many animals; used for feeling or grasping or locomotion

n sensitivity similar to that of a receptor organ

“he had a special antenna for public relations”

Synonyms:: feeler

Type of:: sensitiveness, sensitivity
the ability to respond to affective changes in your interpersonal environment

2

n an electrical device that sends or receives radio or television signals

Synonyms:: aerial, transmitting aerial

Types:: show 8 types...; hide 8 types...; dipole, dipole antenna
an aerial half a wavelength long consisting of two rods connected to a transmission line at the center; directional antenna
an antenna that transmits or receives signals only in a narrow angle; nondirectional antenna, omnidirectional antenna
an antenna that sends or receives signals equally in all directions; array
an arrangement of aerials spaced to give desired directional characteristics; dish, dish aerial, dish antenna, saucer
directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation; radio aerial, radio antenna
omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received; television antenna, tv-antenna
an omnidirectional antenna tuned to the broadcast frequencies assigned to television; Yagi aerial, yagi
a sharply directional antenna

Type of:: electrical device
a device that produces or is powered by electricity