(from the article `radiation measurement`) ...organic scintillators take many different forms. The earliest were pure crystals of anthracene or stilbene. More recently, organics are used ... Found on http://www.britannica.com/eb/a-z/f/40
Flu'or noun [ Latin , a flowing, from fluere to flow. See Fluent .] 1. A fluid state. [ Obsolete] Sir I. Newton. 2. Menstrual flux; catamenia; menses. [ Obsolete] 3. (Min.) See Fluorite . Found on http://www.encyclo.co.uk/webster/F/49