【化】 returned acid
circumfluence; refluence
【化】 back flow; circulation reflux; contra-flow; flow-back; reflux
refluxing
【医】 backflow; palirrhea; reflux reflextonus; refluxing; regurgitation
return; return current
acerbity; ache; acid; grieved; pedantic; sour; tartness
【化】 acid
【医】 acidum