English
rotodynamic
From roto- + dynamic.
Formed from roto- + dynamic
Proto-Indo-European *dewh₂- ‘to fit’
…
Ancient Greek δῠ́νᾰμαι
Ancient Greek δύναμις ‘power’
Ancient Greek δυναμικός ‘powerful’
French dynamique ‘in motion, dynamic’
English dynamic
Today it means
adj In which energy is continuously imparted to the pumped fluid by means of a rotating impeller, propeller, or rotor (unlike a positive displacement pump, in which a fluid is moved by trapping a fixed amount of fluid and forcing the trapped volume into the pump's discharge)
Sources
Sources: Wiktionary, “rotodynamic”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / rotodynamic