[v] convert (metallic mercury) into a grey powder consisting of minute globules, as by shaking with chalk or fatty oil
[v] make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation; "Terror blunted her feelings"; "deaden a sound"
[v] become lifeless, less lively, intense, or active; lose life, force, or vigor
[v] make vague or obscure or make (an image) less visible; "muffle the message"
[v] lessen the momentum or velocity of; "deaden a ship's headway"
[v] make vapid or deprive of spirit; "deadened wine"
[v] cut a girdle around (a plant) so as to kill by interrupting the circulation of water and nutrients