Summary. A cyst is a fluid-filled sac. There are two types of kidney cysts. Polycystic kidney disease (PKD) runs in families. In PKD, the cysts take the place of the normal tissue.
Meaning: An official prohibition or edict against something. Classified under: Nouns denoting communicative processes and contents. Synonyms: forbidding; banning; forbiddance; ban. Hypernyms (ban is a kind of...): prohibition (refusal to approve or assent to) Hyponyms (each of the following is a kind of ban):
Learner's definition of BAN. [+ object] 1. : to forbid people from using (something) : to say that something cannot be used or done. The school banned that book for many years. The city has banned smoking in all public buildings. The drug was banned a decade ago. The use of cell phones is banned in the restaurant. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples