| AI | accidental injury; accidentally incurred; adiposity index; aggregation index; allergy and immunology... |
|---|---|
| A2C | apical two-chamber [view] |
| A4C | apical four-chamber [view] |
| AER | abduction/external rotation; acoustic evoked response; acute exertional rhabdomyolysis; agranular en... |
| AP | accessory pathway; accounts payable; acid phosphatase; acinar parenchyma; action potential; active p... |
| FIR | Finite Impulse Response |
|---|---|
| IRF | impulse response function |
| AER | Apical Ectodermal Ridge |
| AMA-1 | Apical Membrane Antigen-1 |
| AMV | Apical membrane vesicles |
| apex impulse | Conventionally the lowermost, leftmost area of cardiac pulsation that is usually palpable. (05 Mar 2000) |
|---|---|
| cardiac impulse | Movement of the chest wall produced by cardiac contraction. (05 Mar 2000) |
| morbid impulse | An impulse that drives one to commit some act, usually of a deviant or forbidden nature, notwithstanding efforts to restrain oneself. (05 Mar 2000) |
| point of maximal impulse | The point on the chest wall at which the maximal cardiac impulse is seen and/or felt. (05 Mar 2000) |
| nerve impulse | An action potential. (18 Nov 1997) |
| impulse | 1. The act of impelling, or driving onward with sudden force; impulsion; especially, force so communicated as to produced motion suddenly, or immediately. "All spontaneous animal motion is performed by mechanical impulse." (S. Clarke) 2. The effect of an impelling force; motion produced by a sudden or momentary force. 3. <mechanics> The action of a force during a very small interval of time; the effect of such action; as, the impulse of a sudden blow upon a hard elastic body. 4. A mental force which simply and directly urges to action; hasty inclination; sudden motive; momentary or transient influence of appetite or passion; propension; incitement; as, a man of good impulses; passion often gives a violent impulse to the will. "These were my natural impulses for the undertaking." (Dryden) Synonym: Force, incentive, influence, motive, feeling, incitement, instigation. Origin: L. Impulsus, fr. Impellere. See Impel. Source: Websters Dictionary (01 Mar 1998) |
| impulse control disorder | A class of mental disorder's characterised by an individual's failure to resist an impulse to perform some act harmful to himself or to others; includes pathological gambling, pedophilia, kleptomania, pyromania, trichotillomania, intermittent and isolated explosive disorder's. (05 Mar 2000) |
| impulse control disorders | Disorders whose essential features are the failure to resist an impulse, drive, or temptation to perform an act that is harmful to the individual or to others. Individuals experience an increased sense of tension prior to the act and pleasure, gratification or release of tension at the time of committing the act. (12 Dec 1998) |
| irresistible impulse | A compulsion to act such that one feels or claims it cannot be resisted. (05 Mar 2000) |
| ectopic impulse | An electrical impulse from an area of the heart other than the sinus node. (05 Mar 2000) |
| escape impulse | One or more impulse's (atrial, junctional, or ventricular) arising as a result of delay in the formation or arrival of impulses from the prevailing pacemaker. (05 Mar 2000) |
| apical | <anatomy> Relating to or located at the tip (an apex). (09 Oct 1997) |
| apical abscess | <dentistry> A dental abscess that occurs at the end of a root, caused by tooth decay which invades the pulp chamber of the tooth. Involvement of the pulp chamber can lead to destruction of the nerve and blood vessels which supply the tooth. These infections must be treated by root canal therapy (endodontics) or tooth extraction. (27 Sep 1997) |
| apical angle | The angle between two plane surfaces of a prism. Synonym: refracting angle of a prism. (05 Mar 2000) |
| apical-aortic conduit | A valved conduit between the LV apex and aorta, used to treat severe otherwise unapproachable LV outflow tract obstruction. (05 Mar 2000) |
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