Definition of retractile in English:

retractile

adjective rɪˈtraktʌɪlrəˈtræktəl

Zoology

Capable of being retracted.
〔动〕能缩回的，能缩进的
a long retractile proboscis
能卷缩的长鼻子。
Example sentencesExamples
- The feeding zooids use retractile tentacles, called the lophophore, to filter feed and have a U-shaped gut for digestion.
- The morphology of the middle and distal phalanx in Tapocyon exhibits a retractile claw condition, supporting this as the primitive condition for Carnivora / Carnivoramorpha.
- The habit of felids to use primarily their forelimbs to capture prey is supported by the anatomy and function of their retractile claws.
- Like scaphopods, bivalves have a retractile foot which they use to burrow.
- In Australia, for example, marsupial herbivores the size of a rhinoceros, kangaroos nearly 10 feet tall, and carnivorous lion-like forms with shearing teeth and retractile claws all roamed the landscape.

Derivatives

retractility

noun rɪtrakˈtɪlɪti

Zoology

The pull cord mechanism for the self-opening umbrella constitutes at least a core tube rest, a core tube, a plurality of sheaves, a lower shaft, a center shaft and a string of pull cord, in which the center shaft contains several sections of short shaft for retractility.
Example sentencesExamples
- Telephone cords used to connect a handset to a base should have sufficient retractility to insure that they will return in a controlled gradual manner to their normal retracted position after having been extended and released.

Origin

Late 18th century: from retract, on the pattern of contractile.

Definition of retractile in US English:

retractile

adjectiverəˈtraktəlrəˈtræktəl

Zoology

Capable of being retracted.
〔动〕能缩回的，能缩进的
a long retractile proboscis
能卷缩的长鼻子。
Example sentencesExamples
- The morphology of the middle and distal phalanx in Tapocyon exhibits a retractile claw condition, supporting this as the primitive condition for Carnivora / Carnivoramorpha.
- In Australia, for example, marsupial herbivores the size of a rhinoceros, kangaroos nearly 10 feet tall, and carnivorous lion-like forms with shearing teeth and retractile claws all roamed the landscape.
- Like scaphopods, bivalves have a retractile foot which they use to burrow.
- The habit of felids to use primarily their forelimbs to capture prey is supported by the anatomy and function of their retractile claws.
- The feeding zooids use retractile tentacles, called the lophophore, to filter feed and have a U-shaped gut for digestion.

Origin

Late 18th century: from retract, on the pattern of contractile.

单词	retractile
释义	Definition of retractile in English: retractile adjective rɪˈtraktʌɪlrəˈtræktəl Zoology Capable of being retracted. 〔动〕能缩回的，能缩进的 a long retractile proboscis 能卷缩的长鼻子。 Example sentencesExamples The feeding zooids use retractile tentacles, called the lophophore, to filter feed and have a U-shaped gut for digestion. The morphology of the middle and distal phalanx in Tapocyon exhibits a retractile claw condition, supporting this as the primitive condition for Carnivora / Carnivoramorpha. The habit of felids to use primarily their forelimbs to capture prey is supported by the anatomy and function of their retractile claws. Like scaphopods, bivalves have a retractile foot which they use to burrow. In Australia, for example, marsupial herbivores the size of a rhinoceros, kangaroos nearly 10 feet tall, and carnivorous lion-like forms with shearing teeth and retractile claws all roamed the landscape. Derivatives retractility noun rɪtrakˈtɪlɪti Zoology The pull cord mechanism for the self-opening umbrella constitutes at least a core tube rest, a core tube, a plurality of sheaves, a lower shaft, a center shaft and a string of pull cord, in which the center shaft contains several sections of short shaft for retractility. Example sentencesExamples Telephone cords used to connect a handset to a base should have sufficient retractility to insure that they will return in a controlled gradual manner to their normal retracted position after having been extended and released. Origin Late 18th century: from retract, on the pattern of contractile. Definition of retractile in US English: retractile adjectiverəˈtraktəlrəˈtræktəl Zoology Capable of being retracted. 〔动〕能缩回的，能缩进的 a long retractile proboscis 能卷缩的长鼻子。 Example sentencesExamples The morphology of the middle and distal phalanx in Tapocyon exhibits a retractile claw condition, supporting this as the primitive condition for Carnivora / Carnivoramorpha. In Australia, for example, marsupial herbivores the size of a rhinoceros, kangaroos nearly 10 feet tall, and carnivorous lion-like forms with shearing teeth and retractile claws all roamed the landscape. Like scaphopods, bivalves have a retractile foot which they use to burrow. The habit of felids to use primarily their forelimbs to capture prey is supported by the anatomy and function of their retractile claws. The feeding zooids use retractile tentacles, called the lophophore, to filter feed and have a U-shaped gut for digestion. Origin Late 18th century: from retract, on the pattern of contractile.
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