| 1. | a person or thing that trains. |
| 2. | a staff member on an athletic team who gives first aid and therapy to injured players. |
| 3. | a person who trains athletes; coach. |
| 4. | a person who trains racehorses or other animals for contests, shows, or performances. |
| 5. | an airplane or a simulated aircraft used in training aircrew members, esp. pilots. |
trainer
in military aviation, an airplane that is designed and used to train pilots to operate advanced aircraft effectively. The complicated modern military airplane requires a high degree of skill on the part of pilots. Military training programs commonly make use of a single-engine aircraft for primary training phases, with twin-jet trainers for transition stages
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