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

• 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

• (of a speed) equal to, or greater than, or capable of achieving, five times the speed of sound.

• (of a speed) far enough above the speed of sound as to cause significant differences in behaviour due to chemical reactions or disassociation of the air.

• Any relatively large crystal embedded in a more fine-grained or glassy igneous rock

• plants of the class Gymnospermae having seeds not enclosed in an ovary

• the stalk of a pistil that raises it above the receptacle

• A name given to several unrelated plants around the world. In general they all have round leaves of about the shape and size of a (pre-decimal) penny.

• a sleep disorder characterized by sudden and uncontrollable episodes of deep sleep

• an inclination to do something

• a natural inclination

• a disposition to behave in a certain way

• a spy who works against enemy espionage