dynamo
Concise Oxford English Dictionary © 2008 Oxford University Press:
dynamo/ˈdʌɪnəməʊ/
▶noun (pl. dynamos) chiefly Brit.
- 1 a machine for converting mechanical energy into electrical energy by rotating conducting coils in a magnetic field.
- 2 informal an extremely energetic person.
– origin C19: abbrev. of dynamo-electric machine, from Gk dunamis ‘power’.
'dynamo' also found in these Oxford entries:
