Third-person singular simple present indicative form of unclog.(verb)
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Use "unclogging" in a sentence
"Top gunsmiths do not revel in unclogging gummed-up rifles and shotguns whose owners could not be bothered to keep them clean, so unless you have a reasonably good firearm and something interesting in mind for it, leave these guys alone."
"Sen. Barack Obama, the presumptive Democratic nominee, and other lawmakers have proposed a $60 billion national infrastructure bank that would fund projects that could improve regional and national transportation, such as unclogging freight-rail bottlenecks in the Chicago area."
"While I've never had much problems with blocked drains, there's a whole "unclogging" industry around the world that sells all kinds of devices and chemicals to deal with this problem."