English Dictionary
◊ PROTECTION
protection
n 1: the activity of protecting someone or something; "the
witnesses demanded police protection"; "he hated to
spend so much time guarding his new car" [syn: {protecting},
{guarding}]
2: a covering that is intend to protect from damage or injury;
"they had no protection from the fallout"; "wax provided
protection for the floors" [syn: {protective covering}]
3: defense against financial failure; "his pension gave him
security in his old age"; "insurance provided protection
against loss of wages due to illness" [syn: {security}]
4: the condition of being protected; "they were huddled
together for protection"; "he enjoyed a sense of peace and
protection in his new home" [syn: {shelter}]
5: kindly endorsement and guidance; "the tournament was held
under the auspices of the city council" [syn: {auspices},
{aegis}]
6: the imposition of duties or quotas on imports in order to
protect domestic industry against foreign competition; "he
made trade protection a plank in the party platform" [syn:
{trade protection}]
7: payment extorted by gangsters on threat of violence; "every
store in the neighborhood had to pay him protection" [syn:
{tribute}]
English Computing Dictionary
◊ PROJECTION
projection
In domain theory, a {function}, f, which is (a)
{idempotent}, i.e. f(f(x))◦f(x) and (b) whose result is no
more defined than its argument. E.g. F(x)◦bottom or F(x)◦x.
In {reduction} systems, a function which returns some
{component} of its argument. E.g. head, tail, \ (x,y) . x.
In a {graph reduction} system the function can just return a
pointer to part of its argument and does not need to build any
new graph.
(1997-01-29)