[only before noun] used to describe sth that is very small or small enough to be put and carried in a pocket袖珍的◆a pocket pager/organizer/dictionary袖珍传呼机／电子记事簿／词典◆You can use a pocket PC to send and receive email.你可以使用掌上电脑收发电子邮件。  ➡  pocket-sized out-of-pocket