(rail transport) A length of dead-end track, e.g. alongside a main line, used for the purpose of allowing a train to shunt back into a siding or rail yard without the need for the train to occupy a running line.

Alternative form of nondiscrete

plural of new wine in an old wineskin

(idiomatic) Alternative form of new wine in an old bottle

Alternative form of nam phrik

Any member of an integer sequence that has the same recursive relationship as the Fibonacci sequence, i.e. each term is the sum of the two previous terms, but with different starting values such that the ratios of successive terms approach the golden ratio.

(combinatorics) Any member of a sequence of numbers that count the possible partitions of a set, such that the nth number Bₙ is the number of different ways to partition a set that has exactly n elements.

(mathematics) Stirling number of the first kind / (mathematics) Stirling number of the second kind

(mathematics) Any of a class of coefficients expressing rising factorials in terms of falling factorials.

(mathematics) The number of ways to partition a set of n objects into k non-empty subsets, denoted by S(n,k).