1. read (something), typically in a thorough or careful way: formal"he has spent countless hours in libraries perusing art history books and catalogues"
▪ examine carefully or at length:formal"Laura perused a Caravaggio"
Word Originlate 15th century (in the sense ‘use up, wear out’): perhaps from per- ‘thoroughly’ + use, but compare with Anglo-Norman French peruser ‘examine’.