An Etymological Dictionary of Astronomy and Astrophysics

1. A compact mass, in particular that contained in a less dense environment.
   

2. → molecular clump.
   

3. Inhomogeneities on small scales present in → stellar winds. See also → clumped wind.

Etymology (EN): Clump, from Du. klomp “lump, mass,” or Low Ger. klump.

Etymology (PE): Gudé “ball, bowl, tumour” in Gilaki, cf. Skt. guda- “ball, mouthful, lump, tumour,”
Gk. gloutos “rump,” L. glomus “ball,” globus “globe,” Ger. Kugel, E. clot, PIE *gel- “to make into a ball.”