asex·u·al /(ˌ)eˈsɛkʃ(ə)wəl, ˈsɛkʃəl/
  (a.)無性的,無性生殖的
  asex·u·al /(ˈ)eˈsɛkʃ(ə)wəl, ˈsɛkʃəl/ 形容詞
  (拉asexualis)無性的
  A·sex·u·al a.
  1. Biol. Having no distinct sex; without sexual action; as, asexual reproduction. See Fission and Gemmation.
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  asexual
       adj : not havning or involving sex; "an asexual spore"; "asexual
             reproduction" [syn: nonsexual] [ant: sexual]