<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31316651</termId><termName>mastic</termName><termType>PT</termType><termNote><![CDATA[ Gum exudation of small evergreens native to the Mediterranean countries, soluble in both alcohol and turpentine; used for artists' paint and coating lacquer. Mastic varnish becomes yellow and brittle with age. Mastic was used in 16th and 17th century recipes for oil-resin varnishes; in the 19th century, mastic was a popular clear, glossy spirit varnish for oil paintings and was also used as an additive in oil medium. By the 20th century, its use was superseded by dammar. ]]></termNote><termCreatedDate>2026-03-30 20:25:16</termCreatedDate><relation><relationType>UF</relationType><termId>31316652</termId><termName>mastic resin</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31303857</termId><termName>resin</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31339939</termId><termName>Chios mastic</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31339941</termId><termName>Bombay mastic</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31468682</termId><termName>Pistacia lentiscus</termName><termType>PT</termType></relation></term>  </Zthes>