1. proportionality(n = noun.linkdef) - a ratio of two quantities that is constant;
is a kind of ratio
has particulars: commensurateness, correspondence, proportionateness
Derived form adjective proportional2
2. 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
The state of being in proportion. Coleridge. [1913 Webster]