proportionality

Noun proportionality has 2 senses

• proportionality(n = noun.linkdef) - a ratio of two quantities that is constant;
has particulars: commensurateness, correspondence, proportionateness
is a kind of ratio
Derived form adjective proportional₂

• proportionality(n = noun.attribute) balance, proportion - harmonious arrangement or relation of parts or elements within a whole (as in a design); "in all perfectly beautiful objects there is found the opposition of one part to another and a reciprocal balance"
is a kind of arrangement, placement