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nounone of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive to touch and taste
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"he had a special antenna for public relations"nounsensitivity similar to that of a receptor organ
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nounan electrical device that sends or receives radio or television signals
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Definition that contains antenna
- dish directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation
- pattern graphical representation (in polar or Cartesian coordinates) of the spatial distribution of radiation from an antenna as a function of angle
- butterfly diurnal insect typically having a slender body with knobbed antennae and broad colorful wings
- moth typically crepuscular or nocturnal insect having a stout body and feathery or hairlike antennae
- cyclops minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms
- lobe the enhanced response of an antenna in a given direction as indicated by a loop in its radiation pattern
- saucer directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation
- locust migratory grasshoppers of warm regions having short antennae
- theremin an electronic musical instrument; melodies can be played by moving the right hand between two rods that serve as antennas to control pitch; the left hand controls phrasing
- yagi a sharply directional antenna