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.
In the summer of 2010, we completed construction of our Animal Infirmary. This facility allows the zoo to provide an even higher quality of care, with new veterinary access in our custom exam room and holding areas for public view of our birds that have âmigratedâ indoors for the winter.