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haltere

Line breaks: hal|tere
Pronunciation: /halˈtɪə
 
/

Definition of haltere in English:

noun

(usually halteres) Entomology
The balancing organ of a two-winged fly, seen as either of a pair of knobbed filaments that take the place of the hindwings, vibrating during flight.
Example sentences
  • There are imaginal discs for each of the six legs, two wings, and the two halteres (balancing organs), and for the genital apparatus, eyes, antennae, and other adult head structures.
  • During flight, the halteres beat in precise anti-phase with the forewings, thereby activating several hundred specialized mechanosensory cells at the base of the structures.
  • The reduced remnants of the second pair of wings are known as halteres, and seem to function as stabilizers or as airspeed detectors.

Origin

mid 16th century (originally plural, denoting a pair of weights like dumb-bells held in the hands to give impetus when jumping): from Greek haltēres (plural), from hallesthai 'to leap'.

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