retarding force

English Thesaurus

1. the phenomenon of resistance to motion through a fluid (noun.phenomenon)

hypernym	:	resistance,
definition	:	any mechanical force that tends to retard or oppose motion (noun.phenomenon)

hyponym	:	sonic barrier, sound barrier,
definition	:	the increase in aerodynamic drag as an airplane approaches the speed of sound (noun.phenomenon)

hyponym	:	windage,
definition	:	the retarding force of air friction on a moving object (noun.phenomenon)