请输入您要查询的英文单词:

 

单词 dextral
释义

Definition of dextral in English:

dextral

adjective ˈdɛkstr(ə)lˈdɛkstrəl
  • 1Of or on the right side or the right hand.

    The opposite of sinistral
    Example sentencesExamples
    • Zhang noted that both sinistral and dextral Pa and Pb elements differed entirely.
    • Commonly there is a partitioning of sinistral and dextral criteria on alternate horizons, but horizons occur where both senses coexist.
    • The preference for dextral threads certainly goes back to the unrecorded past.
    • The patient had open fractures of shin bones, dextral pleuropneumonia (mild case), foreign bodies in chest cavity and chest.
    • It is interesting to speculate why most screw threads are dextral and only a relatively small number are sinistral threads.
    1. 1.1 Right-handed.
      Example sentencesExamples
      • Rather, one form of the gene, which we may call D for dextral, may code for right-handedness, while the other allele, which we may call C for chance, leaves the direction of handedness to chance.
      • Although sinistral individuals are known in many normally dextral species, left-handedness as a characteristic of species is rare in most gastropod clades.
      • The literal-minded dextral dwarfs of the right-wing press are undone somewhat by irony and wit, especially since they believe they are uniquely blessed with a ‘sense of humour’.
    2. 1.2Geology Relating to or denoting a strike-slip fault in which the motion of the block on the further side of the fault from an observer is towards the right.
      Example sentencesExamples
      • In the northern Musgrave Block the Petermann Orogeny generated large-scale east-west-trending shear zones that accommodated dextral strike-slip and north- and south-directed thrusting.
      • In this interpretation, the Troodos ophiolite formed to the east (in its current orientation) of a ridge-transform ridge intersection, in which the transform had a dextral offset and sinistral slip.
      • In fact, Aleksandrowski et al proposed that the complex was originally contiguous with the Northern Phyllite Zone in Germany and that dextral strike-slip fault movement translated this region southeastward to its present position.
      • The Murzinka-Adui Metamorphic Complex to the SE of the Salda Complex is separated from the latter by the Petrokamensk Arc and the Sisert dextral strike-slip fault.
      • It is commonly assumed that the Stanovoy sinistral shear zone and the Sakhalin-Hokkaido dextral shear zone in NE Asia are two conjugate strike-slip faults related to the India-Eurasia collision.
    3. 1.3Zoology (of a spiral mollusc shell) with whorls rising to the right and coiling in an anticlockwise direction.
      Example sentencesExamples
      • So the spiral of the operculum of a dextral (right-handed) snail is invariably counterclockwise, while that of a sinistral shell is the opposite.
      • Sinistral individuals in normally dextral populations often deviate slightly in shell form from wild-type dextrals, perhaps implying that the left-handed condition has small deleterious side effects.
      • In plan view, several specimens show minor changes in the generally linear orientation with either a sinistral or a dextral turn.
      • Nevertheless, sinistral and dextral Pb elements are virtually mirror images, that is, they are more alike than the corresponding elements in L. variabilis.
      • There are dextral species, sinistral species, and a variable species (P. suturalis-see below) all within the same genus.
noun ˈdɛkstr(ə)lˈdɛkstrəl
  • A right-handed person.

    Example sentencesExamples
    • The five superfamilies shown in Figure 2 depict the five kinds of clade found with respect to the occurrence of sinistrals and dextrals: sinistrals only; majority sinistral; very heterogeneous; majority dextral; dextrals only.

Derivatives

  • dextrality

  • noun dɛkˈstralətidɛkˈstrælədi
    • This tendency towards dextrality was explored further by examining a museum collection of extremities of walrus skeletons.
      Example sentencesExamples
      • Annett, M., Eglinton, E., Smythe, P. were the authors of Types of dyslexia and the shift to dextrality.
      • It is possible that other commissural systems that transmit motor commands and thus influence dextrality may also manifest sexual orientation-related differences.
      • Overall, then, there is no trend from dextrality to sinistrality.
      • But when they were actively seeking out shellfish using their favoured flipper-beating technique, the walruses used their right flipper - a trait known as dextrality - 89 per cent of the time.
  • dextrally

  • adverb
    • Clockwise rotation of the trend of volcanic ridges is associated with dextrally offset, sinistrally slipping transforms, while anticlockwise rotation is associated with sinistrally offset, dextrally slipping transforms.
      Example sentencesExamples
      • Both species described here are sinistrally coiled, but a similar pattern of ornamentation is present on two Pennsylvanian species that are dextrally coiled.
      • Thus, the gerontic aperture of these dextrally coiled shells is situated on the left side in apertural view.
      • Similar to all Porcellioidea, the shell axes of the dextrally coiled early shell and teleoconch are parallel (anastrophy).
      • The outer shell surface of both sinistrally coiled species of Crassimarginata is ornamented by distinct costae, but the dextrally coiled shells of Yukonoconcha seem to be smooth.

Origin

Mid 17th century: from medieval Latin dextralis, from Latin dextra 'the right hand', from dexter 'on the right'.

 
 

Definition of dextral in US English:

dextral

adjectiveˈdɛkstrəlˈdekstrəl
  • 1Of or on the right side or the right hand.

    The opposite of sinistral
    Example sentencesExamples
    • Zhang noted that both sinistral and dextral Pa and Pb elements differed entirely.
    • Commonly there is a partitioning of sinistral and dextral criteria on alternate horizons, but horizons occur where both senses coexist.
    • It is interesting to speculate why most screw threads are dextral and only a relatively small number are sinistral threads.
    • The patient had open fractures of shin bones, dextral pleuropneumonia (mild case), foreign bodies in chest cavity and chest.
    • The preference for dextral threads certainly goes back to the unrecorded past.
    1. 1.1 Right-handed.
      Example sentencesExamples
      • Rather, one form of the gene, which we may call D for dextral, may code for right-handedness, while the other allele, which we may call C for chance, leaves the direction of handedness to chance.
      • The literal-minded dextral dwarfs of the right-wing press are undone somewhat by irony and wit, especially since they believe they are uniquely blessed with a ‘sense of humour’.
      • Although sinistral individuals are known in many normally dextral species, left-handedness as a characteristic of species is rare in most gastropod clades.
    2. 1.2Geology Relating to or denoting a strike-slip fault in which the motion of the block on the further side of the fault from an observer is toward the right.
      Example sentencesExamples
      • In this interpretation, the Troodos ophiolite formed to the east (in its current orientation) of a ridge-transform ridge intersection, in which the transform had a dextral offset and sinistral slip.
      • In the northern Musgrave Block the Petermann Orogeny generated large-scale east-west-trending shear zones that accommodated dextral strike-slip and north- and south-directed thrusting.
      • In fact, Aleksandrowski et al proposed that the complex was originally contiguous with the Northern Phyllite Zone in Germany and that dextral strike-slip fault movement translated this region southeastward to its present position.
      • It is commonly assumed that the Stanovoy sinistral shear zone and the Sakhalin-Hokkaido dextral shear zone in NE Asia are two conjugate strike-slip faults related to the India-Eurasia collision.
      • The Murzinka-Adui Metamorphic Complex to the SE of the Salda Complex is separated from the latter by the Petrokamensk Arc and the Sisert dextral strike-slip fault.
    3. 1.3Zoology (of a spiral mollusk shell) with whorls rising to the right and coiling in a counterclockwise direction.
      Example sentencesExamples
      • There are dextral species, sinistral species, and a variable species (P. suturalis-see below) all within the same genus.
      • Nevertheless, sinistral and dextral Pb elements are virtually mirror images, that is, they are more alike than the corresponding elements in L. variabilis.
      • In plan view, several specimens show minor changes in the generally linear orientation with either a sinistral or a dextral turn.
      • So the spiral of the operculum of a dextral (right-handed) snail is invariably counterclockwise, while that of a sinistral shell is the opposite.
      • Sinistral individuals in normally dextral populations often deviate slightly in shell form from wild-type dextrals, perhaps implying that the left-handed condition has small deleterious side effects.
nounˈdɛkstrəlˈdekstrəl
  • A right-handed person.

    Example sentencesExamples
    • The five superfamilies shown in Figure 2 depict the five kinds of clade found with respect to the occurrence of sinistrals and dextrals: sinistrals only; majority sinistral; very heterogeneous; majority dextral; dextrals only.

Origin

Mid 17th century: from medieval Latin dextralis, from Latin dextra ‘the right hand’, from dexter ‘on the right’.

 
 
随便看

 

英语词典包含464360条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/23 14:45:20