The Collaborative International Dictionary of English v.0.48:
low-sudsing \low-sudsing\ adj. causing little foam to form; -- used of e.g. detergents. Contrasted with high-sudsing. [WordNet 1.5]WordNet (r) 3.0 (2006):
low-sudsing adj 1: (used of e.g. detergents) producing few suds [ant: high- sudsing]