| cover | Anything that provides protection from predators or ameliorates adverse conditions of streamflow and/or seasonal changes in metabolic costs. May be instream cover, turbulence, and/or overhead cover, and may be for the purpose of escape, feeding, hiding, or resting. (09 Oct 1997) |
|---|---|
| cover class | A category into which plant species would fit based upon their percent areal cover, the cover classes used (midpoints in parentheses) are T = <1% cover (0), 1 = 1-5% (3.0), 2 = 6-15% (10.5), 7 = 51-75% (63.0), 6 = 76-95% (85.5), 7 = 96-100% (98.0). (09 Oct 1997) |
| cover glass | A thin glass disk or plate covering an object examined under the microscope. Synonym: coverslip. (05 Mar 2000) |
| cover test | A test used for objective demonstration of ocular deviation in strabismus; may be performed by two methods: the cover-uncover test and the alternate cover test. (05 Mar 2000) |
| cover-uncover test | A test to detect strabismus; the patient's attention is directed to a small fixation object, one eye is covered and after a few seconds, uncovered; if the uncovered eye moves to see the picture, strabismus is present. (05 Mar 2000) |
| coverage | A measure of the extent to which the services rendered cover the potential need for these services in a community; applied specifically to such services as immunization in developing countries. (05 Mar 2000) |
| covering | A surrounding layer; something that covers or encloses, forming an outer layer. See: tunica. Coverings of spermatic cord, coverings of the spermatic cord, including external and internal spermatic fasciae, and cremasteric muscle and fascia. Synonym: tunicae funiculi spermatici. (05 Mar 2000) |
| coverslip | <microscopy> Thin glass, plastic, sapphire, SiO, NaCl, etc. Shaped into circles, squares, or rectangles for covering the specimen. Glass coverslips, grade no. 1 1/2, contain a high proportion of covers from 0.17 to 0.18 mm in thickness, close to the lens designer's specifications for employment of achromatic and apochromatic objectives of high numerical aperture. The thickness and refractive index of the glass coverslip are important because certain of their values have been assumed by the designer and manufacturer. These values have been specified by ASTM: thickness, commercial number 1 1/2: 0.16 to 0.19 mm, refractive index measured at the sodium D lines (589.3 nm), 1.523(0.005). (05 Aug 1998) |
| covert sensitization | Aversive conditioning or training to rid onself of an unwanted behaviour during which the patient is taught to imagine unpleasant and related aversive consequences while engaging in the unwanted habit. (05 Mar 2000) |
| alternate cover test | A test to detect phoria or strabismus; attention is directed to a small fixation object, and one eye is covered for several seconds; then the cover is moved quickly to the other eye; if the eye moves when it is uncovered, a strabismus or phoria is present. (05 Mar 2000) |
|---|---|
| areal cover | <botany, ecology> A measure of dominance that defines the degree to which above ground portions of plants cover the ground surface, it is possible for the total areal cover for all strata combined in a community or for single stratum to exceed 100 percent because: most plant communities consist of two or more vegetative strata. Areal cover is estimated by vegetative layer, and foliage within a single layer may overlap. (09 Oct 1997) |
| vegetative fish cover | <ecology> Vegetation materials, such as algal mats and organic debris, capable of providing protection for fish and other aquatic organisms. (06 Mar 2000) |
| prism cover test | Measurement of the deviation in strabismus by the alternate cover test combined with neutralization for the deviation using prisms. (05 Mar 2000) |
| shaded riverine aquatic cover | Near-shore aquatic area occurring at the interface between a stream and adjacent woody habitat. (09 Oct 1997) |
| instream cover | Areas of shelter in a stream channel that provide aquatic organisms protection from predators or competitors and/or a place in which to rest and conserve energy due to a reduction in the force of the current. (09 Oct 1997) |
| overhead cover | Material (organic or inorganic) that provides protection to fish or other aquatic animals from above, generally includes material overhanging the stream less than a particular distance above the water surface. Values less than 0.5 m (1.5 feet) and less than 1 m (3 feet) have been used. (09 Oct 1997) |
| thermal cover | Vegetative condition, generally with greater than 70% canopy closure and 40 feet in height, that can significantly ameliorate weather effects such as wind, heat, cold, and snow. Used by wildlife in winter. (05 Dec 1998) |
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| cover |
provide with a covering or cause to be covered; "cover her face with a handkerchief"; "cover the child with a blanket"; "cover the grave with flowers" form a cover over; "The grass covered the grave" span an interval of distance, space or time; "The war extended over five years"; "The period covered the turn of the century"; "My land extends over the hills on the horizon"; "This farm covers some 200 acres"; "The Archipelago continues for another 500 miles" provide for; "The grant doesn't cover my salary" deal with verbally or in some form of artistic expression; "This book deals with incest"; "The course covered all of Western Civilization"; "The new book treats the history of China" embrace: include in scope; include as part of something broader; have as one's sphere or territory; "This group encompasses a wide range of people from different backgrounds"; "this should cover everyone in the group" traverse: travel across or pass over; "The caravan covered almost 100 miles each day" report: be responsible for reporting the details of, as in journalism; "Snow reported on China in the 1950's"; "The cub reporter covered New York City" hold within range of an aimed firearm to take an action to protect against future problems; "Count the cash in the drawer twice just to cover yourself" hide from view or knowledge; "The President covered the fact that he bugged the offices in the White House" protect or defend (a position in a game); "he covered left field" maintain a check on; especially by patrolling; "The second officer covered the top floor" protect by insurance; "The insurance won't cover this" make up for shortcomings or a feeling of inferiority by exaggerating good qualities; "he is compensating for being a bad father" invest with a large or excessive amount of something; "She covered herself with glory" screen: a covering that serves to conceal or shelter something; "they crouched behind the screen"; "under cover of darkness" help out by taking someone's place and temporarily assuming his responsibilities; "She is covering for our secretary who is ill this week" blanket: bedding that keeps a person warm in bed; "he pulled the covers over his head and went to sleep" be sufficient to meet, defray, or offset the charge or cost of; "Is this enough to cover the check?" spread over a surface to conceal or protect; "This paint covers well" the act of concealing the existence of something by obstructing the view of it; "the cover concealed their guns from enemy aircraft" shroud: cover as if with a shroud; "The origins of this civilization are shrouded in mystery" binding: the protective covering on the front, back, and spine of a book; "the book had a leather binding" covering: a natural object that covers or envelops; "under a covering of dust"; "the fox was flushed from its cover" breed: copulate with a female, used especially of horses; "The horse covers the mare" top: covering for a hole (especially a hole in the top of a container); "he removed the top of the carton"; "he couldn't get the top off of the bottle"; "put the cover back on the kettle" overlay: put something on top of something else; "cover the meat with a lot of gravy" play a higher card than the one previously played; "Smith covered again" fire that makes it difficult for the enemy to fire on your own individuals or formations; "artillery provided covering fire for the withdrawal" be responsible for guarding an opponent in a game cover charge: a fixed charge by a restaurant or night club over and above the charge for food and drink a recording of a song that was first recorded or made popular by somebody else; "they made a cover of a Beatles' song" brood: sit on (eggs); "Birds brood"; "The female covers the eggs" a false identity and background (especially one created for an undercover agent); "her new name and passport are cover for her next assignment" clothe, as if for protection from the elements; "cover your head!"
Ãâó: wordnet.princeton.edu/perl/webwn
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| cover glass |
a small and very thing piece of glass used to cover the specimen on a microscope slide
Ãâó: wordnet.princeton.edu/perl/webwn
|
| covering |
a natural object that covers or envelops; "under a covering of dust"; "the fox was flushed from its cover" an artifact that covers something else (usually to protect or shelter or conceal it) cover: the act of concealing the existence of something by obstructing the view of it; "the cover concealed their guns from enemy aircraft" the act of protecting something by covering it application: the work of applying something; "the doctor prescribed a topical application of iodine"; "a complete bleach requires several applications"; "the surface was ready for a coating of paint";
Ãâó: wordnet.princeton.edu/perl/webwn
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| covert sensitization |
a form of aversive conditioning in which the frequency of undesirable behavior is lessened by mentally associating it with unpleasant mental images.
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| cover |
To defend an area or position.
Ãâó: library.thinkquest.org/12590/dictionary.htm
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| cover | fire that makes it difficult for the enemy to fire on your own individuals or formations |
|---|---|
| cover | the act of concealing the existence of something by obstructing the view of it |
| cover | the front and back covering of a book |
| cover | bedding that keeps a person warm in bed |
| cover | a covering that serves to conceal or shelter something |
| cover | covering for a hole (especially a hole in the top of a container) |
| cover | a natural object that covers or envelops |
| cover | a fixed charge by a restaurant or night club over and above the charge for food and drink |
| cover | clothe, as if for protection from the elements |
| cover | sit on (eggs) |
| cover | protect by insurance |
| cover | be responsible for reporting the details of, as in journalism |
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