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单词 proximal
释义

Definition of proximal in English:

proximal

adjective ˈprɒksɪm(ə)lˈprɑksəməl
Anatomy
  • 1Situated nearer to the centre of the body or the point of attachment.

    〔剖〕近端的;近身体中心的

    the proximal end of the forearm

    前臂的近端。The opposite ofDISTAL .DISTAL 的反义词。

    The opposite of distal
    Example sentencesExamples
    • Approximately one third of polyps and one half of colorectal cancers occur proximal to the splenic flexure.
    • The nerve recombined also beyond the tendon and was subject to compression, proximal to the pisiform bone.
    • The small bowel is of narrow caliber distal to the meconium plug and dilated proximal to the meconium plugs.
    • The needle enters just proximal to the first metacarpal on the extensor surface.
    • In all patients, the injection was administered proximal to the carpal tunnel.
    1. 1.1Geology Relating to or denoting an area close to a centre of a geological process such as sedimentation or volcanism.
      〔地质〕近源的,基点的
      Example sentencesExamples
      • Such sediments and ichnofacies suggest lag deposits winnowed in proximal storm-generated beds.
      • If it was originally present, the proximal part of this onlapping succession has since been removed by erosion.
      • The shoaling trend is thought to reflect upward transition from prodelta to distal and then proximal delta front.
      • The precipitates are now difficult to locate and were not found in our recent shallow cores through the proximal sinter terrace.
      • Individual deposit thicknesses vary from 20 m in proximal facies, to less than 2 m in distal facies.

Derivatives

  • proximally

  • adverb
    • Because the oligo tails of the telomeric retrotransposons always face proximally, the sequences flanking the P element can be used to determine its orientation.
      Example sentencesExamples
      • In contrast, the same landmarks are shifted proximally along the negative axis of Y8, truncating the proximal end of the humerus and displacing the midshaft constriction toward the humeral head.
      • Complete release was defined as fascial division extending from the level of the posterior fibular head or fascial origin on the tibia proximally to the level of the inferior segment of the extensor retinaculum distally.
      • The mechanism of the injury presented here was a combined proximally directed loading force on an outstretched, adducted, and internally rotated arm combined with a posterior loading force on the thorax.
      • From here proximally the phalanges are broad and depressed and the scansors extend towards the base of the digits beneath these highly modified phalanges.

Origin

Early 19th century (as a term in anatomy and zoology): from Latin proximus 'nearest' + -al. In geology, usage dates from the 1940s.

Definition of proximal in US English:

proximal

adjectiveˈpräksəməlˈprɑksəməl
Anatomy
  • 1Situated nearer to the center of the body or the point of attachment.

    〔剖〕近端的;近身体中心的

    the proximal end of the forearm

    前臂的近端。The opposite ofDISTAL .DISTAL 的反义词。

    The opposite of distal
    Example sentencesExamples
    • The needle enters just proximal to the first metacarpal on the extensor surface.
    • The nerve recombined also beyond the tendon and was subject to compression, proximal to the pisiform bone.
    • In all patients, the injection was administered proximal to the carpal tunnel.
    • Approximately one third of polyps and one half of colorectal cancers occur proximal to the splenic flexure.
    • The small bowel is of narrow caliber distal to the meconium plug and dilated proximal to the meconium plugs.
    1. 1.1Geology Relating to or denoting an area close to a center of a geological process such as sedimentation or volcanism.
      〔地质〕近源的,基点的
      Often contrasted with distal
      Example sentencesExamples
      • Such sediments and ichnofacies suggest lag deposits winnowed in proximal storm-generated beds.
      • If it was originally present, the proximal part of this onlapping succession has since been removed by erosion.
      • The precipitates are now difficult to locate and were not found in our recent shallow cores through the proximal sinter terrace.
      • Individual deposit thicknesses vary from 20 m in proximal facies, to less than 2 m in distal facies.
      • The shoaling trend is thought to reflect upward transition from prodelta to distal and then proximal delta front.

Origin

Early 19th century (as a term in anatomy and zoology): from Latin proximus ‘nearest’ + -al. In geology, usage dates from the 1940s.

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更新时间:2024/12/27 14:38:51