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单词 compound eye
释义

Definition of compound eye in English:

compound eye

noun
  • An eye consisting of an array of numerous small visual units, as found in insects and crustaceans.

    Contrasted with simple eye
    Example sentencesExamples
    • The ommatidia of these two groups are the most similar of the major arthropod groups and compound eyes are common in many hexapods and crustaceans.
    • In common with many other insects, adult butterflies have antennae, compound eyes, three pairs of legs, a hard exoskeleton, and a body that is divided into three parts: the head, thorax, and the abdomen.
    • Evidently the lenses act to focus light in a manner similar to the compound eyes of insects.
    • Crustaceans that have apposition compound eyes as adults, like some crabs, may simply continue to use the larval design with few modifications.
    • Fiddler crabs, like their arthropod cousins the insects, have compound eyes.
    • The optical design of a compound eye that permits the smallest retinal radius is the apposition type, so it is not surprising that this is the optical plan used in all larval crustacean compound eyes.
    • These considerations lead to the interesting hypothesis that genes that code for myodocopid compound eyes were maintained during ostracod evolution in the absence of the eyes themselves.
    • Complementing the large compound eyes, locusts have three much smaller simple eyes or ocelli characterized by rapid signal transmission and high photic sensitivity but very poor spatial resolution.
    • Either compound eyes were lost numerous times or very similar eyes evolved separately in multiple lineages.
    • Each compound eye is composed of nearly 28,000 individual units, and together the eyes cover most of the head.
    • We are all familiar with the idea that there are strikingly different kinds of eyes in animals: insects have compound eyes with multiple facets, while we vertebrates have simple lens eyes.
    • The nervous system and sensory system are simple, although some species vibrate their compound eyes to gather more visual information.
    • But all sighted insects have compound eyes, consisting of a mosaic of tube-shaped optical lens systems, with photoreceptors at the base of each tube.
    • Insect compound eyes contain light-sensitive receptors in which phototransduction takes place.
    • The eyes are usually simple, though one group has compound eyes.
    • Flies, crabs, and other arthropods have compound eyes in which many, sometimes hundreds, of individual ommatidia, or unit eyes, gather visual information.
    • Like the compound eyes of adult crustaceans, larval eyes contain several types of pigments.
    • In addition to ocelli and compound eyes, some insects are quite sensitive to sounds, and their chemoreceptive abilities are astounding.
    • A close-up view of a male blue dasher dragonfly shows the many lenslets of the insect's compound eyes.
    • The eyes may have permitted comprehension of the world in the same fashion as the similar compound eyes of living arthropods.
 
 

Definition of compound eye in US English:

compound eye

nounkəmˈpaʊnd aɪ
  • An eye consisting of an array of numerous small visual units, as found in insects and crustaceans.

    Contrasted with simple eye
    Example sentencesExamples
    • In addition to ocelli and compound eyes, some insects are quite sensitive to sounds, and their chemoreceptive abilities are astounding.
    • Insect compound eyes contain light-sensitive receptors in which phototransduction takes place.
    • Each compound eye is composed of nearly 28,000 individual units, and together the eyes cover most of the head.
    • Flies, crabs, and other arthropods have compound eyes in which many, sometimes hundreds, of individual ommatidia, or unit eyes, gather visual information.
    • The nervous system and sensory system are simple, although some species vibrate their compound eyes to gather more visual information.
    • We are all familiar with the idea that there are strikingly different kinds of eyes in animals: insects have compound eyes with multiple facets, while we vertebrates have simple lens eyes.
    • But all sighted insects have compound eyes, consisting of a mosaic of tube-shaped optical lens systems, with photoreceptors at the base of each tube.
    • Fiddler crabs, like their arthropod cousins the insects, have compound eyes.
    • The optical design of a compound eye that permits the smallest retinal radius is the apposition type, so it is not surprising that this is the optical plan used in all larval crustacean compound eyes.
    • A close-up view of a male blue dasher dragonfly shows the many lenslets of the insect's compound eyes.
    • Complementing the large compound eyes, locusts have three much smaller simple eyes or ocelli characterized by rapid signal transmission and high photic sensitivity but very poor spatial resolution.
    • The ommatidia of these two groups are the most similar of the major arthropod groups and compound eyes are common in many hexapods and crustaceans.
    • Like the compound eyes of adult crustaceans, larval eyes contain several types of pigments.
    • In common with many other insects, adult butterflies have antennae, compound eyes, three pairs of legs, a hard exoskeleton, and a body that is divided into three parts: the head, thorax, and the abdomen.
    • Either compound eyes were lost numerous times or very similar eyes evolved separately in multiple lineages.
    • Crustaceans that have apposition compound eyes as adults, like some crabs, may simply continue to use the larval design with few modifications.
    • These considerations lead to the interesting hypothesis that genes that code for myodocopid compound eyes were maintained during ostracod evolution in the absence of the eyes themselves.
    • The eyes are usually simple, though one group has compound eyes.
    • The eyes may have permitted comprehension of the world in the same fashion as the similar compound eyes of living arthropods.
    • Evidently the lenses act to focus light in a manner similar to the compound eyes of insects.
 
 
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更新时间:2025/1/11 5:49:38