Definitions for arthropod
ˈɑr θrəˌpɒd; ɑrˈθrɒp ə dl; ɑrˈθrɒp ə dnarthro·pod

Princeton's WordNetRate this definition:0.0 / 0 votes

1. arthropodnoun

   invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin

WiktionaryRate this definition:0.0 / 0 votes

1. arthropodnoun

   An invertebrate animal of the phylum Arthropoda, characterized by a chitinous exoskeleton and multiple jointed appendages.

2. Etymology: From arthropoda, from ἄρθρον

WikipediaRate this definition:0.0 / 0 votes

1. Arthropod

   Arthropods (, from Ancient Greek ἄρθρον (arthron) 'joint', and πούς (pous) 'foot' (gen. ποδός)) are invertebrate animals with an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, often mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior organs; it has an open circulatory system. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. Their nervous system is "ladder-like", with paired ventral nerve cords running through all segments and forming paired ganglia in each segment. Their heads are formed by fusion of varying numbers of segments, and their brains are formed by fusion of the ganglia of these segments and encircle the esophagus. The respiratory and excretory systems of arthropods vary, depending as much on their environment as on the subphylum to which they belong. Arthropods use combinations of compound eyes and pigment-pit ocelli for vision. In most species, the ocelli can only detect the direction from which light is coming, and the compound eyes are the main source of information, but the main eyes of spiders are ocelli that can form images and, in a few cases, can swivel to track prey. Arthropods also have a wide range of chemical and mechanical sensors, mostly based on modifications of the many bristles known as setae that project through their cuticles. Similarly, their reproduction and development are varied; all terrestrial species use internal fertilization, but this is sometimes by indirect transfer of the sperm via an appendage or the ground, rather than by direct injection. Aquatic species use either internal or external fertilization. Almost all arthropods lay eggs, but many species give birth to live young after the eggs have hatched inside the mother, and a few are genuinely viviparous, such as aphids. Arthropod hatchlings vary from miniature adults to grubs and caterpillars that lack jointed limbs and eventually undergo a total metamorphosis to produce the adult form. The level of maternal care for hatchlings varies from nonexistent to the prolonged care provided by social insects. The evolutionary ancestry of arthropods dates back to the Cambrian period. The group is generally regarded as monophyletic, and many analyses support the placement of arthropods with cycloneuralians (or their constituent clades) in a superphylum Ecdysozoa. Overall, however, the basal relationships of animals are not yet well resolved. Likewise, the relationships between various arthropod groups are still actively debated. Today, Arthropods contribute to the human food supply both directly as food, and more importantly, indirectly as pollinators of crops. Some species are known to spread severe disease to humans, livestock, and crops.

ChatGPTRate this definition:0.0 / 0 votes

1. arthropod

   Arthropod is a type of animal species characterized by its segmented body, exoskeleton and a pair of jointed appendages. This group includes insects, spiders, crustaceans, and other similar organisms. They are members of the phylum Arthropoda, which is the largest phylum in the animal kingdom. Arthropods can inhabit both terrestrial and aquatic environments.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Arthropodnoun

   one of the Arthropoda

WikidataRate this definition:0.0 / 0 votes

1. Arthropod

   An arthropod is an invertebrate animal having an exoskeleton, a segmented body, and jointed appendages. Arthropods are members of the phylum Arthropoda, and include the insects, arachnids, and crustaceans. Arthropods are characterized by their jointed limbs and cuticles, which are mainly made of α-chitin; the cuticles of crustaceans are also biomineralized with calcium carbonate. The rigid cuticle inhibits growth, so arthropods replace it periodically by moulting. The arthropod body plan consists of repeated segments, each with a pair of appendages. Their versatility has enabled them to become the most species-rich members of all ecological guilds in most environments. They have over a million described species, making up more than 80% of all described living animal species, some of which, unlike most animals, are very successful in dry environments. They range in size from microscopic plankton up to forms a few meters long. Arthropods' primary internal cavity is a hemocoel, which accommodates their internal organs and through which their blood circulates; they have open circulatory systems. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. Their nervous system is "ladder-like", with paired ventral nerve cords running through all segments and forming paired ganglia in each segment. Their heads are formed by fusion of varying numbers of segments, and their brains are formed by fusion of the ganglia of these segments and encircle the esophagus. The respiratory and excretory systems of arthropods vary, depending as much on their environment as on the subphylum to which they belong.

Matched Categories

1. • Invertebrate

Usage in printed sourcesFrom: 

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How to pronounce arthropod?

1. Alex

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   David

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   Daniel

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   Libby

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How to say arthropod in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of arthropod in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of arthropod in Pythagorean Numerology is: 7

Examples of arthropod in a Sentence

1. Van Roy:

   Anomalocaridids seemed to lack front limbs, being an arthropod — being a joint-legged animal — and not having legs, it's kind of embarrassing.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=arthropod
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Arthropod
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Arthropod
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/arthropod
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=arthropod
7. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=arthropod