| attenuated vaccine |
A vaccine prepared from live bacteria or viruses, which have been weakened so they produce immunity but do not cause disease. Also called live attenuated vaccines. (Compare with inactivated vaccine.)
Ãâó: www.gulflink.osd.mil/va/va_taba.htm
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|---|---|
| attention deficit disorder |
A disorder associated with low attention spans and hyperactivity
Ãâó: www.macalester.edu/~psych/whathap/UBNRP/synesthesi...
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| attack |
(See amplitude.)
Ãâó: www.keithyates.com/glossary.htm
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| attenuate |
attenuation. The lessening of sound signal level due to divergence, absorption, reflection, refraction, diffraction, etc., typically expressed in decibels. [3]
Ãâó: www.keithyates.com/glossary.htm
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| attrition |
The loss of subjects during the course of a study. This may be a threat to the validity of conclusions if participants of study and comparison/control groups drop out at different rates or for different reasons. FOR EXAMPLE, if treatment participants fail to appear for treatment and are subsequently excluded from the follow-up, the treatment and control subjects remaining may not be "comparable" due to attrition.
Ãâó: www.ojp.usdoj.gov/BJA/evaluation/glossary/glossary...
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| ATT | a fan that blows hot air out of the attic of a building |
|---|---|
| ATT | the territory of Athens in ancient Greece |
| ATT | atlas moth |
| ATT | giant saturniid moth widespread in Asia |
| ATT | king of the Huns |
| ATT | clothing of a distinctive style or for a particular occasion |
| ATT | put on special clothes to appear particularly appealing and attractive |
| ATT | dressed or clothed especially in fine attire |
| ATT | a theatrical pose created for effect |
| ATT | position or arrangement of the body and its limbs |
| ATT | a complex mental state involving beliefs and feelings and values and dispositions to act in certain ways |
| ATT | position of aircraft or spacecraft relative to a frame of reference (the horizon or direction of motion) |
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