aerodynamics
Concise Oxford English Dictionary © 2008 Oxford University Press:
aerodynamics/eərəʊdʌɪˈnamɪks/
▶plural noun
- 1 [treated as sing.] the branch of science concerned with the properties of moving air and the interaction between the air and solid bodies moving through it.
- 2 [treated as pl.] aerodynamic properties.
– derivatives
aerodynamicist noun.
aerodynamicist noun.
'aerodynamics' also found in these Oxford entries:

