<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31398013</termId><termName>water clocks</termName><termType>PT</termType><termNote><![CDATA[ Ancient devices for measuring the passage of time that depended upon the regular flow of water into or out of graduated vessels. ]]></termNote><termCreatedDate>2026-03-30 20:47:01</termCreatedDate><relation><relationType>UF</relationType><termId>31398014</termId><termName>clepsydra</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31398015</termId><termName>clepsydrae</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31398016</termId><termName>clepsydras</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31398017</termId><termName>clock, water</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31398018</termId><termName>clocks, water</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31398019</termId><termName>water clock</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31358230</termId><termName>timepieces by form</termName><termType>PT</termType></relation></term>  </Zthes>