Ad`e·qua'tion noun [ Latin adaequatio .] The act of equalizing; act or result of making adequate; an equivalent. [ Obsolete] Bp. Barlow. Found on http://www.encyclo.co.uk/webster/A/28
(Ger. Adäquation) In Husserl: verification; fulfilment. -- D.C. (Lat. adequatio) In Aquinas: relation of truth to being. Found on https://www.encyclo.co.uk/local/21203