Definitions for halteres
hal·teres

WikipediaRate this definition:0.0 / 0 votes

1. Halteres

   Halteres (; singular halter or haltere) (from Ancient Greek: ἁλτῆρες, weights held in the hands to give an impetus in leaping) are a pair of small club-shaped organs on the body of two orders of flying insects that provide information about body rotations during flight. Insects of the large order Diptera (flies) have halteres which evolved from a pair of ancestral hindwings, while males of the much smaller order Strepsiptera (stylops) have halteres which evolved from a pair of ancestral forewings. Halteres oscillate rapidly along with the wings and operate like vibrating structure gyroscopes: any rotation of the plane of oscillation causes a force on the vibrating halteres by the Coriolis effect. The insect detects this force with sensory organs called campaniform sensilla and chordotonal organs located at the base of the halteres and uses this information to interpret and correct its position in space. Halteres provide rapid feedback to the wing-steering muscles, as well as to the muscles responsible for stabilizing the head.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Halteres

   balancers; the rudimentary hind wings of Diptera

2. Etymology: [NL., fr. Gr. "alth^res weights used in jumping, fr. "a`llesqai to leap.]

WikidataRate this definition:0.0 / 0 votes

1. Halteres

   Halteres are small knobbed structures modified from the hind wings in some two-winged insects. They are flapped rapidly and function as gyroscopes, informing the insect about rotation of the body during flight. The word 'halter' comes from Greek ἁλτήρ, a double knobbed device used in Ancient Greece by athletes during training in jumping. In Diptera, the formation of the haltere during metamorphosis is dependent on the homeotic gene Ultrabithorax. If this gene is experimentally deactivated, the haltere will develop into a fully developed wing. This is an excellent illustration of an important mechanism of a simple homeotic gene change can result in a radically different phenotype. Halteres flap up and down as the wings do and operate as vibrating structure gyroscopes. Every vibrating object tends to maintain its plane of vibration if its support is rotated, a result of Newton's first law. If the body of the insect changes direction in flight or rotates about its axis, the vibrating halteres thus exert a force on the body. The insect detects this force with sensory organs known as campaniform sensilla located at the base of the halteres. The planes of vibration of the two halteres are orthogonal to each other, each forming an angle of about 45 degrees with the axis of the insect; this increases the amount of information gained from the halteres.

EntomologyRate this definition:0.0 / 0 votes

1. Halteres

   the poisers or balancers: capitate movable filaments in Diptera, situated one on each side of the thorax and representing rudimentary hind wings.

Anagrams for halteres »

1. leathers

How to pronounce halteres?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say halteres in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of halteres in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of halteres in Pythagorean Numerology is: 7

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Halteres
2. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/halteres
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=halteres
4. ^ Entomology
   https://www.gutenberg.org/files/22748/22748-h/22748-h.htm#:~:text=halteres