/ ɪnˈtensəti; NAmE / noun ( pl. -ies )
1.
[ U , sing. ] the state or quality of being intense :
intensity of light / sound / colour
intensity of feeling / concentration / relief
He was watching her with an intensity that was unnerving.
The storm resumed with even greater intensity.
2.
[ U , C ] (usually technical ) the strength of sth, for example light, that can be measured :
varying intensities of natural light