electro-acoustic
Concise Oxford English Dictionary © 2008 Oxford University Press:
electro-acoustic/ɪlɛktrəʊəˈkuːstɪk/
▶adjective
- 1 involving the interconversion of electrical and acoustic energy.
- 2 denoting a guitar with both a pickup and a reverberating hollow body.
'electro-acoustic' also found in these Oxford entries:

