En ‧ car ‧ ta /enˈkɑːtə $ -ɑːr-/ BrE AmE trademark
a type of ↑ encyclopedia (=a product with articles about many different subjects) which is produced only on a CD-ROM or a DVD, and is not available as a printed book. It is a ↑ multimedia product, with pictures, sound, pieces of film etc, and it is produced by ↑ Microsoft .