dis·si·pate 
/ˈdɪsəˌpeɪt/ verb
dis·si·pates; dis·si·pat·ed; dis·si·pat·ing /ˈdɪsəˌpeɪt/ verb formal 1 a [+ obj] : to cause (something) to spread out and disappear
▪ The morning sun dissipated the fog.
b [no obj] : to separate into parts and disappear or go away
▪ The fog should dissipate soon. ▪ By noon the crowd had dissipated. [=(more commonly) dispersed] — often used figuratively ▪ Her anger began to dissipate after a while. 2 [+ obj] : to use all or a lot of (something, such as money or time) in a foolish way
▪ He had dissipated [=squandered] his family's fortune in only a few years.
▪ The morning sun dissipated the fog.
b [no obj] : to separate into parts and disappear or go away
▪ The fog should dissipate soon. ▪ By noon the crowd had dissipated. [=(more commonly) dispersed] — often used figuratively ▪ Her anger began to dissipate after a while.
▪ He had dissipated [=squandered] his family's fortune in only a few years.
