noesis UK /nəʊˈiːsɪs/US /noʊˈisɪs/ noun3 •Cognition, the functioning of intellect. •The exercise of reason. •The consciousness component of noetics, which concerns the duality of noesis and noema.Husserl calls the noesis the meaning-giving element of the act, and the noema he calls the meaning given in the act." — 2003 formsnoeses · noêses · noëses · noēses