“+ adjective
Etymology: Latin subacidus, from sub- + acidus acid — more at acid
1.
a. : moderately sour to the taste
subacid fruit juices
b. : somewhat biting (as in manner, style, or presentation) : rather tart
subacid prose
a little subacid kind of … impatience — Laurence Sterne
2.
a. : containing less than the normal or usual amount of acid
a subacid salt
b. : having a hydrogen-ion concentration of 5.5 to 6.0 — used especially of leaf-mold soils
• sub·acidly “+ adverb
• sub·acidness “+ noun