deletion

n 1: any process whereby sounds are left out of spoken words or

phrases [syn: {omission}]

2: the part that is omitted when an editorial change shortens a

written passage; "an editor's deletions frequently upset

young authors" [syn: {cut}]

3: the act of deleting something written or printed

relation

1. A subset of the {product} of two sets, R : A

x B. If (a, b) is an element of R then we write a R b,

meaning a is related to b by R. A relation may be:

{reflexive} (a R a), {symmetric} (a R b ◦> b R a),

{transitive} (a R b & b R c ◦> a R c), {antisymmetric} (a R b

& b R a ◦> a ◦ b) or {total} (a R b or b R a).

See {equivalence relation}, {partial ordering}, {pre-order},

{total ordering}.

2. A {table} in a {relational database}.

(1995-02-28)