The term aspiration can refer to the process of inhaling purposely. Aspiration also refers to withdrawing using suction, such as in a needle aspiration that would be done to remove tissues for sampling.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, and Stephanie Slon.