transformer

Short definition from Wiktionary

Noun

1. 1
   Something that transforms, changing its own or another thing's shape.
2. 2
   A static device that transfers electric energy from one circuit to another by magnetic coupling; primarily used to transfer energy between different voltage levels, which allows the most appropriate voltages for power generation, transmission and distribution to be chosen separately.
3. 3
   A neural network architecture composed of layers of attention which takes sequences of tokens (representing text, images, audio, or other modalities) as input.
4. 4
   Alternative letter-case form of Transformer.
5. 5
   A toy in the Transformers toyline which has mechanical parts that allow it to be altered in appearance from its original form as a humanoid robot action figure to another form, usually a vehicle, depending on the toy.
6. 6
   In the Transformers franchise, any of the alien humanoid robots that can mechanically alter their appearance, or "transform", into a vehicle, creature, or (rarely) a tool.