15-Letter Words Containing: A,M,B,R,O,O,N,_

• the posterior portion of the brain including cerebellum and brainstem

• a state of being relaxed and feeling no pain

• a feeling of being at ease in a relationship

• an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot

• presence of hemoglobin in the urine

• the branch of biotechnology that uses biological process to overcome environmental problems

• the act of treating waste or pollutants by the use of microorganisms (as bacteria) that can break down the undesirable substances