(set theory) The Cartesian product of two real lines.

(linear algebra, mathematical analysis) A vector space over the field of real numbers.

plural of reading stone

A hemisphere of glass used as a magnifier when placed with its flat side against a surface with text.

plural of real part

plural of reading room

Real Madrid, a football club from Madrid.

(computing) A permission to access files or directories where the user is only allowed to read or view, not to make changes.

Written in a legal style aimed at lawyers.

(computing) A cache that will fetch information from the original source when asked for information that is not yet cached.