10-Letter Words Containing: E,R,E,O

• pose a threat to; present a danger to

• put at risk

• cause (a compound) to polymerize

• undergo polymerization

• 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 fertile black soil containing a very high percentage of humus (3% to 15%) and high percentages of phosphoric acids, phosphorus and ammonia.

• edit by omitting or modifying parts considered indelicate