When an engine is ignited, it produces thrust and boosts the rocket into the sky. After the propellant is used up, delay is activated, producing tracking smoke and allowing the rocket a brief coast.
infirmary (plural infirmaries) 1  A place where sick or injured people are cared for, especially a small hospital; sickhouse. 2  A clinic or dispensary within another institution.
hospital for soldiers and other military personnel classified under nouns denoting man made objects hypernyms military hospital is a kind of hospital infirmary a health facility where patients receive treatment domain category armed forces armed services military military machine war machine the military forces of a nation hyponyms each of the following is a kind of military hospital field hospital a temporary military hospital near the battle lines