Another round of winter weather moves into the South Associated Press; The 38 most amazing photos of this week's weather
proportional - one of the quantities in a mathematical proportion. quantity - the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable. proportion - the quotient obtained when the magnitude of a part is divided by the magnitude of the whole.
Definition of contribution. 1  1 : a payment (such as a levy or tax) imposed by military, civil, or ecclesiastical authorities usually for a special or extraordinary purpose. 2  2 : the act of contributing; also : the thing contributed his $100 contribution to the cancer research fund.