# The DICT Development Group

**4 definitions found
for recursion****From The Collaborative International Dictionary of English v.0.48 :
**
Recursion \Re*cur"sion\ (-sh?n), n. [L. recursio. See Recur.]
The act of recurring; return. [Obs.] --Boyle.
[1913 Webster]

**From WordNet (r) 3.0 (2006) :
**
recursion
n 1: (mathematics) an expression such that each term is
generated by repeating a particular mathematical operation

**From The Jargon File (version 4.4.7, 29 Dec 2003) :
**
recursion
n.
See recursion. See also tail recursion.

**From The Free On-line Dictionary of Computing (30 December 2018) :
**
recursion
mutually recursive
mutual recursion
recurse
recursive
When a function (or procedure)
calls itself. Such a function is called "recursive". If the
call is via one or more other functions then this group of
functions are called "mutually recursive".
If a function will always call itself, however it is called,
then it will never terminate. Usually however, it first
performs some test on its arguments to check for a "base case"
- a condition under which it can return a value without
calling itself.
The canonical example of a recursive function is
factorial:
factorial 0 = 1
factorial n = n * factorial (n-1)
Functional programming languages rely heavily on recursion,
using it where a procedural language would use iteration.
See also recursion, recursive definition, tail recursion.
[{Jargon File]
(1996-05-11)

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