three-cornered jack

短语

发音

AU

词形变化

three-cornered jacks 复数 three-cornered jacks

释义与例句

n.
  1. 1.

    A weed of species Emex australis.

    澳大利亚

    1901, South Australian Department of Agriculture, South Australian Department of Industry, Journal of Agriculture and Industry of South Australia, Volume 4, page 385, The “Three-cornered jack/Devils thorn” (Emex australis) is believed to be poisonous to them, as many dead locusts are found near to each plant.

  2. 2.

    A seed vessel of this plant, which has three symmetrically arranged thorns and a pointed head.