protophilic
/ˌprəʊtə(ʊ)ˈfɪlɪk/(also protophylic) Chemistry
adjective
Of a substance, molecular species, etc.: able to receive a hydrogen atom in protonation; proton-accepting, tending to remove protons. Opposed to protogenic.
Origin
1930s. From proto- + -philic. Compare German protophil, adjective.