larva

英 [ˈlɑːvə]

美 [ˈlɑːrvə]

n.  幼虫; 幼体

复数：larvae　

TOEFLGREIELTSTEM8医学

Collins.1 / BNC.7470 / COCA.9123

牛津词典

noun

• 幼虫；幼体
  an insect at the stage when it has just come out of an egg and looks like a short fat worm

柯林斯词典

• N-COUNT 幼虫；幼体
  Alarvais an insect at the stage of its life after it has developed from an egg and before it changes into its adult form.
  1. The eggs quickly hatch into larvae.
     虫卵很快孵化成幼虫。
  2. ...a dragonfly larva.
     蜻蜓幼虫

英英释义

noun

• the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose

双语例句

• A larva metamorphose into a chrysalis and then into a butterfly.
  幼虫变为蛹，然后再变成蝴蝶。
• Large green white-striped hawkmoth larva that feeds on tomato and potato plants; similar to tobacco hornworm.
  大型的绿色带白条的天蛾幼虫，吃番茄和马铃薯；类似于烟草天蛾幼虫。
• Tadpole-shaped parasitic larva of a trematode worm; tail disappears in adult stage.
  烃源岩已进入成熟阶段，处于生油高峰期。蝌蚪形的吸虫类寄生幼虫；成体阶段尾巴消失。
• Cloning and Sequence Analysis of Defensin Genes from Musca domestica Larva
  家蝇幼虫防御素基因的克隆和序列分析
• The tadpole is the larva of the frog.
  蝌蚪是蛙的幼体。
• The generation differentiation and the development initial temperatures and effective accumulated temperatures for egg, larva and pupa and whole generation of A.
  世代分化现象，测定了卵期、幼虫和蛹期及全世代的发育起点温度和有效积温。
• Bacillus thuringiensis israelensis produce crystal proteins which can be converted into toxins in the gut of the mosquito larva.
  苏云金杆菌会产生蛋白质结晶体，而结晶体在蚊子幼虫的肠内化为毒素。
• Adult phototaxis and first instar larva eat rotten organic matter.
  成虫有趋光性，初孵幼虫喜食已腐烂的有机质。
• A caterpillar is the larva of a butterfly.
  毛虫是蝴蝶的幼体。
• The larva of an ant lion or of any of several other insects.
  蚁狮或其它几种昆虫的幼虫。