Orthoxylene

• (n.) That variety of xylene in which the two methyl groups are in the ortho position; a colorless, liquid, combustible hydrocarbon resembling benzene.
Found on http://thinkexist.com/dictionary/meaning/orthoxylene/

Orthoxylene

Or`tho·xy'lene noun [ Ortho- + xylene .] (Chemistry) That variety of xylene in which the two methyl groups are in the ortho position; a colorless, liquid, combustible hydrocarbon resembling benzene.
Found on http://www.encyclo.co.uk/webster/O/35
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