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trinodal

American  
[trahy-nohd-l] / traɪˈnoʊd l /

adjective

Botany.
  1. having three nodes or joints.


Etymology

Origin of trinodal

1650–60; < Latin trinōd ( is ) having three knots ( tri- tri- + nōd ( us ) node + -is adj. suffix) + -al 1