Noun heterotrichales has 1 sense
  1. Heterotrichales, order Heterotrichales - yellow-green algae with simple or branching filaments; comprising the single family Tribonemaceae
    --1 is a kind of protoctist order
    --1 is a member of Chrysophyta, division Chrysophyta
    --1 has members: Tribonemaceae, family Tribonemaceae
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