| 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 |
| BAD | Bipolar affective disorder |
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| trip | 1. A quick, light step; a lively movement of the feet; a skip. "His heart bounded as he sometimes could hear the trip of a light female step glide to or from the door." (Sir W. Scott) 2. A brief or rapid journey; an excursion or jaunt. "I took a trip to London on the death of the queen." (Pope) 3. A false step; a stumble; a misstep; a loss of footing or balance. An error; a failure; a mistake. "Imperfect words, with childish trips." (Milton) "Each seeming trip, and each digressive start." (Harte) 4. A small piece; a morsel; a bit. "A trip of cheese." 5. A stroke, or catch, by which a wrestler causes his antagonist to lose footing. "And watches with a trip his foe to foil." (Dryden) "It is the sudden trip in wrestling that fetches a man to the ground." (South) 6. A single board, or tack, in plying, or beating, to windward. 7. A herd or flock, as of sheep, goats, etc. 8. A troop of men; a host. 9. <zoology> A flock of widgeons. Source: Websters Dictionary (01 Mar 1998) |
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| 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) |
| 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) |
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