<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Pyr-]]></title><description><![CDATA[<p dir="auto"><a href="/topic/234275/combining-forms">Combining forms</a> designating fire or heat; specifically (Chem.),<br />
used to imply an actual or theoretical derivative by the action of<br />
heat; as in pyrophosphoric, pyrosulphuric, pyrotartaric, pyrotungstic,<br />
etc.</p>
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