protophilic (solvent)

abbreviation: HBA
https://doi.org/10.1351/goldbook.P04916
Capable of acting as proton acceptor, strongly or weakly basic (as a Brønsted base). Also called HBA (hydrogen bond acceptor) solvent.
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1153 [Terms] [Paper]