convergence

convergence
(亦作 convergency)
noun
  1. [mass noun]the process or state of converging
    汇集;相交
    the convergence of lines in the distance.
    线条在远处的相交。
    ■(Biology)the tendency of unrelated animals and plants to evolve superficially similar characteristics under similar environmental conditions
    (生)趋同进化
    ■(亦作 convergence zone)a location where airflows or ocean currents meet, characteristically marked by upwelling (of air) or downwelling (of water)
    会聚区
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