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tricotyledonous

[trahy-kot-l-eed-n-uh s, trahy-kot-]
adjective Botany.
  1. having three cotyledons.
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Origin of tricotyledonous

First recorded in 1820–30; tri- + cotyledon + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018