An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

The ejection of atoms from interstellar dust grains due to impact by gas ions, which leads to grain destruction.

→ grain; sputtering, from sputter "to spit with explosive sounds," cognate with Du. sputteren.

Osparâni, verbal noun of osparândan, from os- "out of, outside," → ex- + parândan "to eject," transitive of paridan "to fly" (from Mid./Mod.Pers. par(r) "feather, wing," Av. parəna- "feather, wing;" cp. Skt. parna "feather," E. fern; PIE *porno- "feather").

To emit particles, sparks, etc., forcibly or explosively, especially accompanied by sputtering sounds.

Originally "to spit with explosive sounds," cognate with Du. sputteren, W.Fris. sputterje.

Osparândan, literally "to throw out," from os- "out," → ex-, + parândan "to eject," transitive verb of paridan "to fly" (from Mid./Mod.Pers. par(r) "feather, wing," Av. parəna- "feather, wing;" cp. Skt. parna "feather," E. fern; PIE *porno- "feather").

The ejection of charged particles or atoms by a solid or liquid surface which undergoes collision with high-energy ions.

Verbal noun of → sputter.