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rachis

英 /ˈreɪkɪs/美 /ˈreɪkɪs/
  • n.
    脊柱；花轴，[植] 叶轴
复数rachides或rachises

双语例句

  1. That is interesting because the rachis seems to aid in flight.
    这就很有趣了，因为羽轴似乎有助于飞行。
  2. Branchlets and inflorescence rachis sparsely pubescent or puberulent.
    小枝和花序轴疏生短柔毛或者被微柔毛。
  3. The finding suggests that the barbs and barbules evolved before the rachis in feathers.
    该发现表明，羽毛中的羽枝和小羽枝是先于羽轴进化出来的。

网络短语

  • pinna rachis
    羽轴
  • rachis internode
    穗轴节间
  • rachis genitalis
    生殖脊
  • rachis oil
    落花生油
  • rachis detail
    花序轴

词语扩展

n.
spinal columnvertebral column
脊柱；[植]花轴，叶轴
n.
rachischisis先天性椎弓不连；脊柱裂

英英释义

  • n.axis of a compound leaf or compound inflorescence
  • n.the series of vertebrae forming the axis of the skeleton and protecting the spinal cord

词源

  • rachis
    来自新拉丁语, 来自古希腊语ῥάχις("spine, ridge").
  • rachis
    From New Latin, from Ancient Greek ῥάχις ‎(rhákhis, “spine, ridge”).