it means that the case is dismissed. If the citation was dismissed, there is no case. Unless you get a notice to appear, you're in the clear.
No legal advice is given here. My responses to questions on Avvo are never intended as legal advice and must NOT be relied upon as if they were legal advice. I give legal advice ONLY in the course of a formal attorney-client relationship. Exchange of information through Avvo's Questions & Answers forum does not establish an attorney-client relationship with me. That relationship is established only by joint execution of a written agreement for legal services. I am only licensed in the States of California and New York and the District of Columbia
As a juvenile either your case proceeds to probation or court. Probation can review the matter and either require you to complete a program or just simply not to break any law and then dismiss it. Or in some cases, they dismiss it all together. So if your citation is dismissed, then all together was dismissed.