cold sore

(infml 口) cluster of painful blisters near or in the mouth, caused by a virus 唇疹.

coincidental, coincidentally, coins, coir, coital, coitus, coke, coke (also Coke), col, cola, cola (also kola), cola-nut (also kola-nut), colander, colander (also cullender), cold, cold chisel, cold cream, cold cuts, cold frame, cold snap, cold storage, cold sweat, cold war, cold-blooded, cold-hearted, cold-shoulder, coldly, coldness, coleslaw, colic, colicky, colitis, collaborate, collaboration, collaborative, collaborator, collage, collapse, collapsible, collar,