Definition of parapodium in English:

parapodium

nounPlural parapodia ˌparəˈpəʊdɪəmˌparəˈpōdēəm

Zoology

1(in a polychaete worm) each of a number of paired muscular bristle-bearing appendages used in locomotion, sensation, or respiration.
Example sentencesExamples
- Muller and Westheide found the innervation pattern of myzostomid parapodia and marginal cirri to be identical to that of polychaete parapodia and cirri.
- Mating status was easily established by inserting a finger between parapodia to determine if adjacent animals were linked by an extended penis.
- Subsequently work on a brittle star showed expression of the gene in the tube feet, and many found it difficult to equate the tube feet of echinoderms with the parapodia of polychaetes or the arthropod limb.
- The Polychaeta lack a clitellum and have parapodia, paddle-like appendages with numerous bristles or chaetae.
- The effect of progenesis has been best illustrated in some groups of interstitial-living annelids in which parapodia as well as the coelom are lost and the segmented appearance greatly reduced.
1. 1.1 (in a sea slug or other mollusc) a lateral extension of the foot used as an undulating fin for swimming.
  Example sentencesExamples
  Among the Anaspidea, numerous species of the genus Aplysia, such as A. brasiliana, are capable of swimming by undulating their parapodia.
  The lateral edge of the parapodium was left free to contract.
  The pteropod mollusk Clione limacina swims by flapping a pair of wing-like parapodia.
  In the latter group, parapodia are highly modified into wings.
  Swimming results from alternate dorsal and ventral flexions of two symmetrical wing-like parapodia.

Derivatives

parapodial

adjective

Zoology

In Clione, an almost continuous parapodial swimmer, the basic CPG is fairly simple.
Example sentencesExamples
- Either one or both parapodia were cut free from the body wall, taking care not to cut the parapodial nerves that connect the pedal ganglia to the periphery.
- However, a very key interneuron in Melibe resides in the pedal ganglion, as is the case in both of the parapodial flappers, Aplysia and Clione, but neither of the dorsal-ventral swimmers.
- However, in parapodial motoneurons, the action potential is initiated at or near the soma and travels to the axon terminal.
- However, behaviors that are outwardly different, such as the lateral bending of Melibe or the parapodial flapping and undulations of Clione and Aplysia brasiliana differ in their neuronal substrate.

Origin

Late 19th century: modern Latin, from Greek para- 'subsidiary' + pous, pod- 'foot'.

Definition of parapodium in US English:

parapodium

nounˌparəˈpōdēəm

Zoology

1(in a polychaete worm) each of a number of paired muscular bristle-bearing appendages used in locomotion, sensation, or respiration.
Example sentencesExamples
- Muller and Westheide found the innervation pattern of myzostomid parapodia and marginal cirri to be identical to that of polychaete parapodia and cirri.
- Mating status was easily established by inserting a finger between parapodia to determine if adjacent animals were linked by an extended penis.
- Subsequently work on a brittle star showed expression of the gene in the tube feet, and many found it difficult to equate the tube feet of echinoderms with the parapodia of polychaetes or the arthropod limb.
- The effect of progenesis has been best illustrated in some groups of interstitial-living annelids in which parapodia as well as the coelom are lost and the segmented appearance greatly reduced.
- The Polychaeta lack a clitellum and have parapodia, paddle-like appendages with numerous bristles or chaetae.
1. 1.1 (in a sea slug or other mollusk) a lateral extension of the foot used as an undulating fin for swimming.
  Example sentencesExamples
  In the latter group, parapodia are highly modified into wings.
  The lateral edge of the parapodium was left free to contract.
  Swimming results from alternate dorsal and ventral flexions of two symmetrical wing-like parapodia.
  The pteropod mollusk Clione limacina swims by flapping a pair of wing-like parapodia.
  Among the Anaspidea, numerous species of the genus Aplysia, such as A. brasiliana, are capable of swimming by undulating their parapodia.

Origin

Late 19th century: modern Latin, from Greek para- ‘subsidiary’ + pous, pod- ‘foot’.

单词	parapodium
释义	Definition of parapodium in English: parapodium nounPlural parapodia ˌparəˈpəʊdɪəmˌparəˈpōdēəm Zoology 1(in a polychaete worm) each of a number of paired muscular bristle-bearing appendages used in locomotion, sensation, or respiration. Example sentencesExamples Muller and Westheide found the innervation pattern of myzostomid parapodia and marginal cirri to be identical to that of polychaete parapodia and cirri. Mating status was easily established by inserting a finger between parapodia to determine if adjacent animals were linked by an extended penis. Subsequently work on a brittle star showed expression of the gene in the tube feet, and many found it difficult to equate the tube feet of echinoderms with the parapodia of polychaetes or the arthropod limb. The Polychaeta lack a clitellum and have parapodia, paddle-like appendages with numerous bristles or chaetae. The effect of progenesis has been best illustrated in some groups of interstitial-living annelids in which parapodia as well as the coelom are lost and the segmented appearance greatly reduced. 1.1 (in a sea slug or other mollusc) a lateral extension of the foot used as an undulating fin for swimming. Example sentencesExamples Among the Anaspidea, numerous species of the genus Aplysia, such as A. brasiliana, are capable of swimming by undulating their parapodia. The lateral edge of the parapodium was left free to contract. The pteropod mollusk Clione limacina swims by flapping a pair of wing-like parapodia. In the latter group, parapodia are highly modified into wings. Swimming results from alternate dorsal and ventral flexions of two symmetrical wing-like parapodia. Derivatives parapodial adjective Zoology In Clione, an almost continuous parapodial swimmer, the basic CPG is fairly simple. Example sentencesExamples Either one or both parapodia were cut free from the body wall, taking care not to cut the parapodial nerves that connect the pedal ganglia to the periphery. However, a very key interneuron in Melibe resides in the pedal ganglion, as is the case in both of the parapodial flappers, Aplysia and Clione, but neither of the dorsal-ventral swimmers. However, in parapodial motoneurons, the action potential is initiated at or near the soma and travels to the axon terminal. However, behaviors that are outwardly different, such as the lateral bending of Melibe or the parapodial flapping and undulations of Clione and Aplysia brasiliana differ in their neuronal substrate. Origin Late 19th century: modern Latin, from Greek para- 'subsidiary' + pous, pod- 'foot'. Definition of parapodium in US English: parapodium nounˌparəˈpōdēəm Zoology 1(in a polychaete worm) each of a number of paired muscular bristle-bearing appendages used in locomotion, sensation, or respiration. Example sentencesExamples Muller and Westheide found the innervation pattern of myzostomid parapodia and marginal cirri to be identical to that of polychaete parapodia and cirri. Mating status was easily established by inserting a finger between parapodia to determine if adjacent animals were linked by an extended penis. Subsequently work on a brittle star showed expression of the gene in the tube feet, and many found it difficult to equate the tube feet of echinoderms with the parapodia of polychaetes or the arthropod limb. The effect of progenesis has been best illustrated in some groups of interstitial-living annelids in which parapodia as well as the coelom are lost and the segmented appearance greatly reduced. The Polychaeta lack a clitellum and have parapodia, paddle-like appendages with numerous bristles or chaetae. 1.1 (in a sea slug or other mollusk) a lateral extension of the foot used as an undulating fin for swimming. Example sentencesExamples In the latter group, parapodia are highly modified into wings. The lateral edge of the parapodium was left free to contract. Swimming results from alternate dorsal and ventral flexions of two symmetrical wing-like parapodia. The pteropod mollusk Clione limacina swims by flapping a pair of wing-like parapodia. Among the Anaspidea, numerous species of the genus Aplysia, such as A. brasiliana, are capable of swimming by undulating their parapodia. Origin Late 19th century: modern Latin, from Greek para- ‘subsidiary’ + pous, pod- ‘foot’.
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