Freebase

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Freebase

A user-generated knowledge base launched by Metaweb in 2007. Google acquired Metaweb in 2010 and used Freebase to develop its own knowledge base (see Google Knowledge Graph). By mid-2015, Freebase was transferred to Wikidata. See Wikidata, knowledge base and Semantic Web.
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References in periodicals archive ?
Free basing is dangerous because cocaine hydrochloride (powdered form) can become volatile when heated to convert it to a cocaine base (rock form).
Making crack cocaine follows the same basic procedure as free basing, but dealers combine baking soda with an additional ingredient, known on the street as "comeback." The runners said that the Chinese invented comeback and that the big-time dealers who sell crack cocaine have easy access to the substance.
the psychopharmacology of crack smoking or free basing tends to lead to binges of compulsive use to maximise the ecstatic highs and minimise, or at least ward off, the excruciating lows that always follow (p.