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closed
has definitions from the field of mathematics
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[ adjective ] not open or affording passage or access
Examples "the many closed streets made travel difficult" "our neighbors peeped from behind closed curtains" Used in print (Chicago Daily Tribune...)Certainly not in Orchestra_hall where he has played countless recitals , and where Thursday night he celebrated his 20th season with the Chicago_Symphony_orchestra , playing the Brahms_Concerto with his own slashing , demon-ridden cadenza melting into the high , pale , pure and lovely song with which a violinist unlocks the heart of the music , or forever finds it closed . (Guy Endore, Voltaire! Voltaire!...)But he recalled that Rameau had once had a private performance of his opera Armide , behind closed doors , just for himself alone . his fear lest in this closed hall he should suddenly itch to relieve_himself . (William Maxwell, The Chateau....)He did n't , but it was not really a question , and so he left the room , walked down the hall to the front of the apartment , hesitated , and then knocked lightly on the closed door of the study . With the metal shutters closed , the dining_room was so dark that it seemed still night in there . Related terms open drawn blocked blind stoppered nonopening shut sealed obstructed |
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[ adjective ] (mathematics) of a curve or surface; having no end points or boundary curves; of a set; having members that can be produced by a specific operation on other members of the same set; of an interval; containing both its endpoints
Used in print (Kenneth Hoffman and Ray Kunze, Linear Al...)First , T may not have a single characteristic value ; this is really a deficiency in the scalar_field , namely , that it is not algebraically closed . Let V be a finite dimensional vector space over an algebraically closed field F , e.g. , the field of complex_numbers . From these results , one sees that the study of linear_operators on vector spaces over an algebraically closed field is essentially reduced to the study of nilpotent operators . For vector spaces over non algebraically closed fields , we still need to find some substitute for characteristic values and vectors . (R. P. Jerrard, "Inscribed squares in plane curves"...)Consider a simple , closed , plane curve C which is a real analytic image of the unit circle , and which is given by **f . Related terms |
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[ adjective ] not open
Examples "the door slammed shut" Used in print (Helen Hooven Santmyer, "There Were Fences"...)Squatting on our haunches beside the flat stone we broke them on , we were safe behind the high closed gates at the end of the drive : safe from interruption and the observation and possible amusement of the passers-by . (Harold Searles, "Schizophrenic Communication,"...)A somewhat less fragmented hebephrenic patient of mine , who used_to often seclude herself in her room , often sounded through the closed door - as I would find on passing_by , between our sessions - for_all_the_world like two persons , a scolding mother and a defensive child . (Harry Olesker, Impact....)Without taking_off his coat , he sat in the blue chair which still faced the closed bedroom door . Related terms |
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[ adjective ] used especially of mouth or eyes
Synonyms Examples "he sat quietly with closed eyes" "his eyes were shut against the sunlight" Used in print (Irving Stone, The Agony and the Ecstasy....)Jesus ' inert body would be passive , his eyes closed . Related terms |
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[ adjective ] requiring union membership
Examples "a closed shop" Used in print (James Bryant Conant, Slums and Suburbs...)It is not often realized to_what_degree certain trades are in many communities closed areas of employment , except for a lucky few . Related terms |
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[ adjective ] not having an open mind
Synonyms Examples "a closed mind unreceptive to new ideas" Related terms |
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[ adjective ] with shutters closed
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[ adjective ] (of the wings of birds and insects) closed together
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[ adjective ] shut down
Examples "the airport is closed because of the weather" "the many closed shops and factories made the town look deserted" Related terms |
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