(dĕp‵ă-zĭsh'īn )

1. Pretrial discovery tool or technique in which the person being questioned (the deponent) is placed under oath and asked to testify about issues on the subject of litigation, which is then transcribed by a court reporter.
2. The sedimentation of particles previously suspended or circulating in solution.

diffusion d.The accumulation of aerosol particles on a surface due to their rand om bombardment by gas molecules.