halteres – מילון אנגלי-אנגלי
Halteres
In
Dipterous insects,
halteres (; singular
halter or
haltere), are minute dumbbell shaped organs that have been modified from
hindwings to provide a means of encoding body rotations during flight. Halteres are rapidly oscillated simultaneously with the wings, allowing them to experience forces resulting from body rotations. If the body of the insect rotates about one of its three axes (yaw, pitch or roll), the rotation exerts a force on the vibrating halteres, known as the
Coriolis effect (see below). 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 act as a balance and guidance system by providing rapid feedback to the wing-steering muscles, as well as those responsible for stabilizing the head. This is what allows flies to perform their fast
acrobatics maneuvers.
halter
Noun
1. rope or canvas headgear for a horse, with a rope for leading
(synonym) hackamore
(hypernym) headgear
(part-holonym) harness
2. a rope that is used by a hangman to execute persons who have been condemned to death by hanging
(synonym) hangman's rope, hangman's halter, hemp, hempen necktie
(hypernym) rope
(part-holonym) gallows, gallows tree, gallows-tree, gibbet, gallous
(part-meronym) noose, running noose, slip noose
3. a woman's top that fastens behind the back and neck leaving the back and arms uncovered
(hypernym) top
4. either of the club-like rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight
(synonym) haltere, balancer
(hypernym) wing
(part-holonym) dipterous insect, two-winged insects, dipteran, dipteron
Verb
1. hang with a halter
(hypernym) hang, string up
(derivation) hangman's rope, hangman's halter, hemp, hempen necktie
2. prevent the progress or free movement of; "He was hampered in his efforts by the bad weather"; "the imperilist nation wanted to strangle the free trade between the two small countries"
(synonym) hamper, cramp, strangle
(hypernym) restrict, restrain, trammel, limit, bound, confine, throttle
haltere
Noun
1. either of the club-like rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight
(synonym) halter, balancer
(hypernym) wing
(part-holonym) dipterous insect, two-winged insects, dipteran, dipteron
haltère
nm.
dumbbell, barbell
haltere
n.
bar bell; dumbbell, small weight for developing arm strength
Halteres
(n. pl.)
Balancers; the rudimentary hind wings of Diptera.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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