(genetics) A DNA sequence, 1000 nucleotides (or synonymously base pairs) in length or longer, that is present a variable number of times as copies in a genome relative to a reference genome.

(mathematics) a positive integer

(library science) An identification number, usually consisting of a combination of numbers and characters, used to identify and locate materials within a library.

(Britain) The revelry on Guy Fawkes Day (the 5th of November) in commemoration of the failure of the Gunpowder Plot of 1605, traditionally including the burning of effigies of the pope, Guy Fawkes, and/or the Devil.

(finance) A promissory note that specifies a date (or dates) when repayment must be made.

(chiefly UK) snobbish, condescending or aloof

(biology) of an RNA strand that is complementary to the positive sense and not transcribed into DNA.

(zoology) a formal scientific name of an animal, especially as conforming to the ICZN.

(idiomatic) To refuse completely to do something, generally out of scorn.

A threaded fastener secured by a press fit into one of the pieces to be joined. Frequently used in sheet metal designs when a material is too thin to tap threads.