10-Letter Words with P,R,O,Y,N,E

• any of a group of compounds that are inactive precursors of enzymes and require some change (such as the hydrolysis of a fragment that masks an active enzyme) to become active

• a B vitamin that is essential for metabolism of amino acids and starch

• A transducer that converts underwater sound waves into electrical signals, rather like a microphone

• roentgenographic examination of veins

• To promote or publicize excessively.

• A heavy, dark igneous rock consisting mostly of pyroxene minerals with smaller amounts of olivine and hornblende.

• the amount that can be bought for a penny

• round, fat, and heavy