释义 |
dragonfly
drag·on·fly D0377200 (drăg′ən-flī′)n. Any of numerous predatory insects of the order Odonata, having large eyes, a long slender body, and two pairs of transparent veined wings, especially those of the order Anisoptera, which hold the wings outstretched when at rest, as distinguished from the damselflies. Also called regionally darner, darning needle, devil's darning needle, mosquito fly, mosquito hawk, needle, skeeter hawk, snake doctor, snake feeder, spindle.Our Living Language Regional terms for the dragonfly are numerous—the Dictionary of American Regional English lists nearly 80 of them. The greatest variety of terms is to be found in the South, where the most widespread term is snake doctor (a name based on a folk belief that dragonflies take care of snakes). The Midland equivalent is snake feeder. Speakers from the Lower South and the Mississippi Valley, on the other hand, are more likely to refer to the same insect as a mosquito fly, mosquito hawk, or, in the South Atlantic states, a skeeter hawk. The imagery outside the South often alludes to the insect's shape rather than its behavior or diet: speakers in the West, in the Upper North, and in New England call it a darner, darning needle, or, less commonly, a devil's darning needle, and those in the Upper North also refer to it just as a needle; those in coastal New Jersey, a spindle.dragonfly (ˈdræɡənˌflaɪ) n, pl -flies1. (Animals) any predatory insect of the suborder Anisoptera, having a large head and eyes, a long slender body, two pairs of iridescent wings that are outspread at rest, and aquatic larvae: order Odonata. See also damselfly2. (Animals) any other insect of the order Odonatadrag•on•fly (ˈdræg ənˌflaɪ) n., pl. -flies. any nonstinging insect of the order Odonata (suborder Anisoptera), distinguished from the damselfly by having the wings open when at rest. [1620–30] drag·on·fly (drăg′ən-flī′) Any of various insects having a long slender body and two pairs of many-veined wings that are held outstretched at rest.ThesaurusNoun | 1. | dragonfly - slender-bodied non-stinging insect having iridescent wings that are outspread at rest; adults and nymphs feed on mosquitoes etc.mosquito hawk, skeeter hawk, snake doctor, snake feeder, sewing needle, darning needle, devil's darning needleodonate - large primitive predatory aquatic insect having two pairs of membranous wings | Translationsdragonfly (ˈdrӕgənflai) noun a kind of insect with a long body and double wings. 蜻蜓 蜻蜓dragonfly
dragonfly, any insectinsect, invertebrate animal of the class Insecta of the phylum Arthropoda. Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. Adult insects typically have wings and are the only flying invertebrates. ..... Click the link for more information. of the order Odonata, which also includes the damselfly. Members of this order are generally large predatory insects and characteristically have chewing mouthparts and four membranous, net-veined wings; they undergo complete metamorphosismetamorphosis [Gr.,=transformation], in zoology, term used to describe a form of development from egg to adult in which there is a series of distinct stages. Many insects, amphibians, mollusks, crustaceans, and fishes undergo metamorphosis, which may involve a change in habitat, ..... Click the link for more information. . Species are found throughout the world except in the polar regions; the greatest variety occurs in the tropics. Dragonflies, which are commonly called horse stingers and devil's darning needles, are strong fliers with elongated bodies; they rest with their wings outstretched. Some are 5 in. (12.7 cm) long. Damselflies are generally smaller, with slender, often brilliantly colored, bodies and rest with their wings folded back. The giant helicopter damselfly of tropical America has a wingspan of 7.5 in. (19 cm). Both dragonflies and damselflies lay eggs on or near water. The nymphs are aquatic and breathe by means of gills located at the end of the abdomen; the gills can also be used for propulsion through the water. The nymphs feed on insect larvae and are an important food for fish and birds. When grown, they crawl up out of the water and molt. Most species produce a single generation each year, with the nymph stage usually overwintering. Both nymphs and adults prey on mosquitoes and other insects and are harmless, indeed beneficial, to humans. Fossil remains of a form from the Permian period, with a wingspread of 2 1-2 ft (76 cm), have been found. Modern dragonflies and damselflies are classified in the phylum ArthropodaArthropoda [Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites. ..... Click the link for more information. , class Insecta, order Odonata. dragonfly[′drag·ən‚flī] (invertebrate zoology) Any of the insects composing six families of the suborder Anisoptera and having four large, membranous wings and compound eyes that provide keen vision. dragonfly1. any predatory insect of the suborder Anisoptera, having a large head and eyes, a long slender body, two pairs of iridescent wings that are outspread at rest, and aquatic larvae: order Odonata 2. any other insect of the order Odonata MedicalSeedamselflydragonfly
Synonyms for dragonflynoun slender-bodied non-stinging insect having iridescent wings that are outspread at restSynonyms- mosquito hawk
- skeeter hawk
- snake doctor
- snake feeder
- sewing needle
- darning needle
- devil's darning needle
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