Definition of Echiura in English:

Echiura

plural noun ˌɛkɪˈjʊ(ə)rəˌekēˈyo͝orə

Zoology

A small phylum of wormlike marine invertebrates that comprises the spoonworms.
Example sentencesExamples
- Two phyla that are probably close relatives of the Annelida, the Pogonophora and Echiura (spoon worms) are very rare as fossils, but all three groups belong to the larger group Trochozoa.
- They are found in many animal taxa including Ctenophora, Echiura, Sipuncula, Annelida Mollusca among others.
- Rouse chose as terminal taxa for his analysis most of the accepted polychaete families, and in addition Clitellata, Rotifera, Platyhelminthes, Nemertea, Mollusca, Sipuncula, Echiura, and Entoprocta.
- When the character scoring between these studies is compared, one finds no debate about character scoring for phyla such as Mollusca, Sipuncula, Echiura, and Entoprocta, all scored present for a prototroch.

Derivatives

echiuran

adjective & noun

Zoology

The plesiomorphic nature of myoepithelial organization of the body wall musculature is evident in adult annelids, echiurans, and sipunculids.
Example sentencesExamples
- I conclude that the molluscan and annelid crosses cannot be upheld as independent potential synapomorphies of molluscs/sipunculans and echiurans / annelids, respectively.
- The body of an echiuran lacks annelid-type segmentation, but the distinctive free-swimming trochophore larval stages of echiurans and polychaetes are very similar.

echiuroid

noun & adjective ˈɛkɪjʊ(ə)ˌrɔɪd

Zoology

Echiuroids also move by extending the proboscis, which takes hold of some fixed object, and, then contracting, draws the body forwards.
Example sentencesExamples
- The oxygen consumption of the echiuroid BoneUia viridis has been investigated by means of a continuous-flow polarographic respirometer.

Origin

Modern Latin (earlier Echiuroidea), from Greek ekhis 'viper' + oura 'tail'.

Definition of Echiura in US English:

Echiura

plural nounˌekēˈyo͝orə

Zoology

A small phylum of wormlike marine invertebrates that comprises the spoonworms.
Example sentencesExamples
- Rouse chose as terminal taxa for his analysis most of the accepted polychaete families, and in addition Clitellata, Rotifera, Platyhelminthes, Nemertea, Mollusca, Sipuncula, Echiura, and Entoprocta.
- When the character scoring between these studies is compared, one finds no debate about character scoring for phyla such as Mollusca, Sipuncula, Echiura, and Entoprocta, all scored present for a prototroch.
- They are found in many animal taxa including Ctenophora, Echiura, Sipuncula, Annelida Mollusca among others.
- Two phyla that are probably close relatives of the Annelida, the Pogonophora and Echiura (spoon worms) are very rare as fossils, but all three groups belong to the larger group Trochozoa.

Origin

Modern Latin (earlier Echiuroidea), from Greek ekhis ‘viper’ + oura ‘tail’.

单词	Echiura
释义	Definition of Echiura in English: Echiura plural noun ˌɛkɪˈjʊ(ə)rəˌekēˈyo͝orə Zoology A small phylum of wormlike marine invertebrates that comprises the spoonworms. Example sentencesExamples Two phyla that are probably close relatives of the Annelida, the Pogonophora and Echiura (spoon worms) are very rare as fossils, but all three groups belong to the larger group Trochozoa. They are found in many animal taxa including Ctenophora, Echiura, Sipuncula, Annelida Mollusca among others. Rouse chose as terminal taxa for his analysis most of the accepted polychaete families, and in addition Clitellata, Rotifera, Platyhelminthes, Nemertea, Mollusca, Sipuncula, Echiura, and Entoprocta. When the character scoring between these studies is compared, one finds no debate about character scoring for phyla such as Mollusca, Sipuncula, Echiura, and Entoprocta, all scored present for a prototroch. Derivatives echiuran adjective & noun Zoology The plesiomorphic nature of myoepithelial organization of the body wall musculature is evident in adult annelids, echiurans, and sipunculids. Example sentencesExamples I conclude that the molluscan and annelid crosses cannot be upheld as independent potential synapomorphies of molluscs/sipunculans and echiurans / annelids, respectively. The body of an echiuran lacks annelid-type segmentation, but the distinctive free-swimming trochophore larval stages of echiurans and polychaetes are very similar. echiuroid noun & adjective ˈɛkɪjʊ(ə)ˌrɔɪd Zoology Echiuroids also move by extending the proboscis, which takes hold of some fixed object, and, then contracting, draws the body forwards. Example sentencesExamples The oxygen consumption of the echiuroid BoneUia viridis has been investigated by means of a continuous-flow polarographic respirometer. Origin Modern Latin (earlier Echiuroidea), from Greek ekhis 'viper' + oura 'tail'. Definition of Echiura in US English: Echiura plural nounˌekēˈyo͝orə Zoology A small phylum of wormlike marine invertebrates that comprises the spoonworms. Example sentencesExamples Rouse chose as terminal taxa for his analysis most of the accepted polychaete families, and in addition Clitellata, Rotifera, Platyhelminthes, Nemertea, Mollusca, Sipuncula, Echiura, and Entoprocta. When the character scoring between these studies is compared, one finds no debate about character scoring for phyla such as Mollusca, Sipuncula, Echiura, and Entoprocta, all scored present for a prototroch. They are found in many animal taxa including Ctenophora, Echiura, Sipuncula, Annelida Mollusca among others. Two phyla that are probably close relatives of the Annelida, the Pogonophora and Echiura (spoon worms) are very rare as fossils, but all three groups belong to the larger group Trochozoa. Origin Modern Latin (earlier Echiuroidea), from Greek ekhis ‘viper’ + oura ‘tail’.
随便看	overdependence overdependent overdependent overdesign over-desire over-desirous overdetailed over-detailed overdetermination overdetermination overdetermination overdetermine overdetermined overdevelop release note release one's hold on release paper releaser releaser releasers releases release therapy release version releasing releasing factor