electron-donor-acceptor complex [obsolete] 

https://doi.org/10.1351/goldbook.E01989
A term sometimes employed instead of charge-transfer complex or Lewis adduct.
See also: adduct, coordination
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1110 [Terms] [Paper]