# caddr

Definition from Wiktionary, the free dictionary

## English[edit]

### Etymology[edit]

Contraction of *car of the cdr of the cdr*.

### Pronunciation[edit]

- IPA
^{(key)}: /ˈkɑːdədə/, /ˈkɑdədɚ/

### Noun[edit]

**caddr** (*plural* **caddrs**)

- (computing) Car of the cdr of the cdr in LISP. The third element in a list.
- Matt Kaufmann, Panagiotis Manolios, and J Strother Moore,
*Computer-aided reasoning: an approach*, 2000 :*If we let x denote the tree (1 2 3), then the car of x is 1, the cdr of x is (2 3), the cadr of x is 2, the***caddr**of x is 3, and the cdddr of x is nil.

- Matt Kaufmann, Panagiotis Manolios, and J Strother Moore,