Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
Mathematics. Of a function: invariant with respect to a group of linear transformations of a certain kind. Of a transformation: †leaving a certain function invariant (obsolete).
2Characterized by automorphism; formed on oneself.
rare Crystallography = idiomorphicrare.
Mathematics. Designating an n-digit number which when raised to a power gives a number whose last n digits are the same as the original number.
Mid 19th century; earliest use found in Arthur Cayley (1821–1895), mathematician. From auto- + -morphic. In the mathematical use designating a function after German automorph.
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.