0 the relationship between two groups or amounts that expresses how much bigger one is than the other:
1 a comparison of two numbers calculated by dividing
a low student-teacher ratio
The ratio of men to women at the conference was ten to one.
2 the relationship between two amounts, represented by two numbers or a percentage, expressing how much bigger one is than the other:
the ratio of sth to sth The ratio of exports to imports also improved from 70.4% to 83.2%.
The ratio of house prices to earnings is 55% above its average level in the past 20 years.
The ratio of men to women at the conference was 10:1.
The company was performing well according to all the key ratios.
The staff to student ratio has increased dramatically in the last five years.
The efficiency of a machine is the ratio between the energy it supplies and the energy put into it.
Pi is the ratio of a circle's circumference to its diameter.
Nonetheless, ratios of post-harvest weights to pre-harvest weights reinforced the view that weight fluctuations were not uniformly large.
The squares are replaced by intermittent hexagonal patterns when the aspect ratio is increased.
The surface stresses (tensions) are functions of the local extension ratios, which depend on the global deformation of the membrane.
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