ˈpäzəˌgrād adjective
Etymology: posi tive + -grade (as in retrograde )
: relating to, using, or being an auxiliary rocket that imparts additional thrust to a spacecraft in the direction of motion
ˈpäzəˌgrād adjective
Etymology: posi tive + -grade (as in retrograde )
: relating to, using, or being an auxiliary rocket that imparts additional thrust to a spacecraft in the direction of motion
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012