Trimethylene

• (n.) A gaseous hydrocarbon, C3H6, isomeric with propylene and obtained from it indirectly. It is the base of a series of compounds analogous to the aromatic hydrocarbons.
Found on http://thinkexist.com/dictionary/meaning/trimethylene/

trimethylene

Type: Term Pronunciation: trī-meth′il-ēn Synonyms: cyclopropane
Found on http://www.medilexicon.com/medicaldictionary.php?t=94016
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