sputtering

Etymology

verb

1. present participle and gerund of sputter

noun

1. A noise that sputters.
   The women of the Los Angeles Master Chorale, seated in the rows where the first violins are typically located, contributed an array of haunting vocal sounds: hushed hums, sustained high tones, sputterings and more. April 11, 2009, Anthony Tommasini, “Moving on, a Music Director Leaves an Imprint, and a New Hall”, in New York Times
2. The ejection of atoms from the surface of a solid or liquid following bombardment with ions, atoms or molecules; used to prepare a thin layer of material on an object.