Marked by imprecision and vacillation; inconstant; uncertain: The wishy-washy player keeps putting off the evil day/ It's not overpowering like Opium and not wishy-washy [1873+; fr a rhythmic reduplication of washy, ''weak, diluted, watered-down,'' probably influenced by wishy as suggesting vacillating desires; the original sense was ''weak, insubstantial, trashy,'' found by 1703]
Medical Definition of avidity. : a characteristic of antibodies (such as antitoxins) that tends to enhance their rate or stability in binding with an antigen Antibody avidity is an average measure of the affinity of the antibodies for a particular antigen in a serum sample.âDominic F. Kelly, The New England Journal of Medicine, 21 Dec. 2005.
AVIDâs mission is to close the achievement gap by preparing all students for college readiness and success in a global society. AVID (Advancement Via Individual Determination) is a college readiness system designed to help students in the middle prepare for and succeed in colleges and universities. AVID is offered in approximately 4,800 elementary, middle and high schools in 48 states and 16 countries/territories.