(cryptography) To calculate the differences between the characters in an enciphered text and the characters a fixed number of positions previous.

(organic chemistry) Any of a family of macrocyclic compounds containing four tetrahydrofuranyl-carboxylic acid residues linked together

A small bunch. / (physics) A very short burst of subatomic particles in the beam of a particle accelerator.

Referring to a word or expression that refers to one gender only.