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trinodal

[trahy-nohd-l]
adjective Botany.
  1. having three nodes or joints.
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Origin of trinodal

1650–60; < Latin trinōd(is) having three knots (tri- tri- + nōd(us) node + -is adj. suffix) + -al1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018