Expectoration: A big polysyllabic word for sputum or the act of bringing up and spitting out sputum. From the Latin expectorare, to expel from the chest, from ex-, out of + pectus, chest. Reviewed on 6/9/2016 Take the Cold & Flu Quiz Do Flu Shots Cause Flu? Is It a Cold or The Flu? Popular Collections Beware of Deadly Bug Bites & Stings Recognize These Common Eye Conditions Natural Cold & Flu Remedies Managing Blood Sugar Swings Cholesterol: What the Numbers Mean Omega-3 Foods for a Stronger Heart Low-T and Erectile Dysfunction Joint Friendly Exercises The Most Effective Birth Control Lung Cancer Stages & Treatments Migraine Triggers You Can Avoid Why Heart Attacks Happen Foods to Help You Concentrate Your Cancer Questions Answered Stop Wrecking Your Teeth The Dangers of Blood Clots Learn More About Eating Disorders Surgery or Medication for Crohn's?