Search pseudomegacolon pseudomegacolon /-meg″əkō′lon/ , a dilation of the colon in an adult patient. Tweet Telegram VK Random Words carbonic acid (H2CO3) methanol (CH3OH) ischiofemoral ligament trisomy 21 basal cell carcinoma choline chloride total color blindness folliculoma supraventricular tachycardia (SVT)