cyst

n hollow organ, bladder, etc in the body, containing liquid matter 胞囊; 胞; 囊: an ovarian cyst 卵巢囊肿.

cyclone, cyclonic, Cyclopean, cyclostyle, cyclotron, cyder, cygnet, cylinder, cylinder block, cylinder head, cylindrical, cymbal, cynic, cynical, cynically, cynicism, cynosure, cypher, cypress, Cyrillic, cystitis, czar, czarina, Czech, D, D (also d), D, d, D-day, D.A., D/A, DA, dab, dabble, dabbler, dabbling, dabchick, dace, dacha, dachshund, Dacron,