noun(usually halteres) Entomology
- 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.
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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