累计查询 0.00 亿次

pyrethrum

英 /paɪˈriːθrəm/美 /paɪˈriːθrəm/
  • n.
    [农药] 除虫菊；除虫菊杀虫剂
复数pyrethrums

双语例句

  1. Feverfew and pyrethrum are used in insecticides.
    小白菊和红花除虫菊可用来制杀虫剂。
  2. To evaluate the immune toxicity of natural pyrethrum.
    目的检测天然除虫菊酯的免疫毒性。
  3. This article draws up the pyrethrum ester insecticide.
    本品是拟除虫菊酯类杀虫剂。

网络短语

  • Pyrethrum krylovianum
    黑苞匹菊
  • Pyrethrum Zinn
    匹菊属
  • Pyrethrum carneum
    除虫菊
  • pyrethrum-extract
    除虫菊；除虫菊酯；除虫菊提取物
  • ANACYCLUS PYRETHRUM
    派利吞草

同义词

n.
dalmatian chrysanthemum
[农药]除虫菊；除虫菊杀虫剂

英英释义

  • n.made of dried flower heads of pyrethrum plants
  • n.white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
  • n.spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers; source of an insecticide; sometimes placed in genus Chrysanthemum
  • n.used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum

词源

  • pyrethrum除虫菊，除虫菊制杀虫剂
    来自拉丁语pyrethrum,来自希腊语purethron,野甘菊，小白菊。