This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A type of rheometer that can be used to measure the viscous and elastic flow properties of a fluid. Commonly the Weissenberg Rheogoniometer.

"The rheogoniometer, the equipment on the basis of which I could carry out my research on Rheology of complex fluids, had to be imported."

rheogoniometric    rheogoniometry