| Engine parts |
| Genetically engineered, highly selective medical treatment |
| Auto engine parts |
| Goes kaput, as an engine |
| Aircraft-engine intakes |
| Elements of stunning black-and-white photographs? |
| Guns (the engine) |
| Like a disengaged engine |
| Classic cars that were the first to have Ram Air engines |
| Routine elements |
| Math set with an unspecified number of elements |
| Reduce engine heat, in a way |
| All the "noble" elements |
| Engineers' colleagues |
| Elements with names ending in -ium, typically |
| Barmy (Spanish) — engine (abbr) |
| Fire engine destination |
| Provided fuel for an engine |
| Aircraft-engine enclosure |
| Type of servant or engineer |
| Rotating engine part |
| Acoustical engineer's concern |
| Alternators in some internal-combustion engines |
| Keep the engine running |
| Abbr. used by electrical engineers |
| Engineers' compartments. |
| Engineer's symbol for efficiency |
| Engineers' org. |
| Animal engineer. |
| Dilbert" engineer whose "cardiovascular system is basically coffee |