| BAD | biological aerosol detection; British Association of Dermatologists |
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| BB | bad breath; bed bath; beta blockade, beta blocker; BioBreeding [rat]; blanket bath; blood bank; bloo... |
| PBSP | prognostically bad signs during pregnancy |
| FOD | focus-to-object distance; free of disease |
| OCC | object-centered coordinate [method]; oral cholecystography |
| BAD | Bipolar affective disorder |
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| CORBA | Common Object Request Broker Architecture |
| bad | Wanting good qualities, whether physical or moral; injurious, hurtful, inconvenient, offensive, painful, unfavorable, or defective, either physically or morally; evil; vicious; wicked; the opposite of good; as a bad man; bad conduct; bad habits; bad soil; bad health; bad crop; bad news. Sometimes used substantively. "The strong antipathy of good to bad." (Pope) Synonym: Pernicious, deleterious, noxious, baneful, injurious, hurtful, evil, vile, wretched, corrupt, wicked, vicious, imperfect. Origin: Probably fr. AS. Baeddel hermaphrodite; cf. Baedling effeminate fellow. Source: Websters Dictionary (01 Mar 1998) |
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| bad lands | Barren regions, especially in the western United States, where horizontal strata (Tertiary deposits) have been often eroded into fantastic forms, and much intersected by canons, and where lack of wood, water, and forage increases the difficulty of traversing the country, whence the name, first given by the Canadian French, Mauvaises Terres (bad lands). Source: Websters Dictionary (01 Mar 1998) |
| cholesterol, bad | Low-density lipoprotein (LDL) cholesterol. (12 Dec 1998) |
| marker, object | <microscopy> A small abrasive stylus, set in a rotating holder mounted on the lower end of the drawtube. The desired part of the specimen is placed in the centre of the field, and the abrasive point is pressed against the slide or cover, and rotated. It describes a tiny circle around the desired object field. (05 Aug 1998) |
| object | 1. That which is put, or which may be regarded as put, in the way of some of the senses; something visible or tangible; as, he observed an object in the distance; all the objects in sight; he touched a strange object in the dark. 2. That which is set, or which may be regarded as set, before the mind so as to be apprehended or known; that of which the mind by any of its activities takes cognizance, whether a thing external in space or a conception formed by the mind itself; as, an object of knowledge, wonder, fear, thought, study, etc. "Object is a term for that about which the knowing subject is conversant; what the schoolmen have styled the "materia circa quam."" (Sir. W. Hamilton) "The object of their bitterest hatred." (Macaulay) 3. That by which the mind, or any of its activities, is directed; that on which the purpose are fixed as the end of action or effort; that which is sought for; end; aim; motive; final cause. "Object, beside its proper signification, came to be abusively applied to denote motive, end, final cause. This innovation was probably borrowed from the French." (Sir. W. Hamilton) "Let our object be, our country, our whole country, and nothing but our country." (D. Webster) 4. Sight; show; appearance; aspect. "He, advancing close Up to the lake, past all the rest, arose In glorious object." (Chapman) 5. A word, phrase, or clause toward which an action is directed, or is considered to be directed; as, the object of a transitive verb. Object glass, the lens, or system of lenses, placed at the end of a telescope, microscope, etc, which is toward the object. Its office is to form an image of the object, which is then viewed by the eyepiece. Called also objective. Object lesson, a lesson in which object teaching is made use of. Object staff. Same as Leveling staff. Object teaching, a method of instruction, in which illustrative objects are employed, each new word or idea being accompanied by a representation of that which it signifies; used especially in the kindergarten, for young children. Origin: L. Objectus. See Object. Source: Websters Dictionary (01 Mar 1998) |
| object attachment | Emotional attachment to someone or something in the environment. (12 Dec 1998) |
| object blindness | Visual agnosia for objects. The subjet sees the object, but cannot identify it; due to a lesion in area 18 of the occipital cortex. Synonym: object blindness, psychanopsia, psychic blindness. (05 Mar 2000) |
| object choice | In psychoanalysis, the object (usually a person) upon which psychic energy is centreed. (05 Mar 2000) |
| object constancy | The tendency for objects to be perceived as unchanging despite variations in the positions in and conditions under which the objects are observed; e.g., a book's shape is always perceived as a rectangle regardless of the visual angle from which it is viewed. (05 Mar 2000) |
| object field | <microscopy> A position lying in the front focal plane of the objective. (05 Aug 1998) |
| object glass | 1. <psychology> Perceptible to the external senses. 2. <ophthalmology> The lens or system of lenses in a microscope (or telescope) that is nearest to the object under examination. Origin: L. Objectivus (18 Nov 1997) |
| object relationship | In the behavioural sciences, the emotional bond between an individual and another person (or between two groups), as opposed to the individual's (or group's) interest in him or herself (itself). (05 Mar 2000) |
| object space | <microscopy> A space within which an object could be imaged by the lens. (05 Aug 1998) |
| test object | An object having very fine surface markings, mounted on a slide, used to determine the defining power of the objective lens of a microscope, the target in measurement of the visual field. (05 Mar 2000) |
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