transformer

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an electrical device by which alternating current of one voltage is changed to another voltage (Freq. 1)
• Derivationally related forms:
transform
• Hypernyms:
electrical device
• Hyponyms:
coil, step-down transformer, step-up transformer, Tesla coil, voltage regulator
• Part Meronyms:
induction coil, primary coil, primary winding, primary, secondary coil,
secondary winding, secondary