system consisting of the parts of an engine through which burned gases or steam are discharged | instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity |
gases ejected from an engine as waste products | an ordered manner; orderliness by virtue of being methodical and well organized |
| a group of physiologically or anatomically related organs or parts |
| the living body considered as made up of interdependent components forming a unified whole |
| a complex of methods or rules governing behavior |
| a procedure or process for obtaining an objective |
| an organized structure for arranging or classifying |
| a group of independent but interrelated elements comprising a unified whole |
| (physical chemistry) a sample of matter in which substances in different phases are in equilibrium |