脱疽 is read as だっそ (dasso) and means gangrene.
だっそ
dasso
ひだっそ
anthrax
だつい
undressing
だっしゅつ
escape
だつぜい
tax evasion
だったい
withdrawal (e.g. from an organization)
だついじょ
changing room (at a bathhouse, swimming pool, etc.)
だっすい
evaporation
だつらく
falling off
だっそう
だっせん
derailment
ぬぐ
to take off (clothes, shoes, etc.)
だっきゃく
ridding oneself