瘫痪
tān huàn · HSK 7
paralysis
♿ Both 瘫痪 carry the sickness radical 疒; 瘫 = 疒 + 难 (difficult) — body too sick and weak to move.
tān huàn pairs two illness-radical characters. The 疒 on the left of each marks disease; 瘫 even hides 难 (nán, hard/difficult) inside it, fitting a body that finds all movement impossible. Used for paralyzed limbs and for transport networks that grind to a halt.
瘫 — sickness radical 疒 + 难 (nán/difficult)
A semantic-phonetic compound. The 疒 radical signals illness or bodily affliction, while 难 supplies the sound (originally nán, shifted to tān). The character means paralysis, with 难 hinting at the difficulty of movement that defines the condition.