'Propulsion' definitions:

Definition of 'propulsion'

From: WordNet
noun
A propelling force
noun
The act of propelling [syn: propulsion, actuation]

Definition of 'Propulsion'

From: GCIDE
  • Propulsion \Pro*pul"sion\, n. [Cf. F. propulsion. See Propel.]
  • 1. The act driving forward or away; the act or process of propelling; as, steam propulsion. [1913 Webster]
  • 2. An impelling act or movement. [1913 Webster]
  • God works in all things; all obey His first propulsion. --Whittier. [1913 Webster]

Synonyms of 'propulsion'

From: Moby Thesaurus