<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31362900</termId><termName>nonagonal</termName><termType>PT</termType><termNote><![CDATA[ Having the form or outline of a nonagon, which is a plane figure having nine angles and nine sides. ]]></termNote><termCreatedDate>2026-03-30 20:37:55</termCreatedDate><relation><relationType>UF</relationType><termId>31362901</termId><termName>enneagonal</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31333751</termId><termName>polygonal</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31402766</termId><termName>nonagons</termName><termType>PT</termType></relation></term>  </Zthes>