na-adjective, noun which may take the genitive case particle 'no', noun
low rate; low percentage
Used for interest rates, tax rates, success rates, and other numerical proportions. Often appears in economic or statistical contexts.
This bank offers low-rate home loans.
Low tax rates encouraged companies to enter the market.
低利 refers specifically to a low interest rate, while 低率 refers more generally to any low rate or percentage, not just interest.
定率 (a fixed rate) and 低率 (a low rate) are pronounced identically but mean different things, so context is needed to tell them apart.
Compound of 低 (てい, 'low') and 率 (りつ, 'rate').