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.
When an infirmary is attached to an institution, it typically has a few beds for patients to rest in, along with cabinets of basic medical supplies like bandages, simple medications, and so forth. A nurse practitioner or lay nurse staffs the facility, providing simple care to people with very basic medical needs.