imp |
1. A shoot; a scion; a bud; a slip; a graft. 2. An offspring; progeny; child; scion. "The tender imp was weaned." (Fairfax) 3. A young or inferior devil; a little, malignant spirit; a puny demon; a contemptible evil worker. "To mingle in the clamorous fray Of squabbling imps." (Beattie) 4. Something added to, or united with, another, to lengthen it out or repair it, as, an addition to a beehive; a feather inserted in a broken wing of a bird; a length of twisted hair in a fishing line. Origin: OE. Imp a graft, AS. Impa; akin to Dan. Ympe, Sw. Ymp, prob. Fr. LL. Impotus, Gr. Engrafted, innate, fr. To implant; in + to produce; akin to E. Be. See 1st In-, Be. 1. To graft; to insert as a scion. 2. <veterinary> To graft with new feathers, as a wing; to splice a broken feather. Hence, To repair; to extend; to increase; to strengthen to equip. "Imp out our drooping country's broken wing." (Shak) "Who lazily imp their wings with other men's plumes. Fuller. Here no frail Muse shall imp her crippled wing." (Holmes) "Help, ye tart satirists, to imp my rage With all the scorpions that should whip this age." (Cleveland) Origin: AS. Impian to imp, ingraft, plant; akin to Dan. Ympe, Sw. Ympa, OHG. Impfon, impiton, G. Impfen. See Imp. Source: Websters Dictionary (01 Mar 1998) |
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imp dehydrogenase |
<enzyme> An enzyme that catalyses the dehydrogenation of inosine 5'-phosphate to xanthosine 5'-phosphate in the presence of NAD.05. Chemical name: IMP:NAD+ oxidoreductase Registry number: EC 1.1.1.205 (12 Dec 1998) |
IMP-aspartate ligase |
<enzyme> A carbon-nitrogen ligase. During purine ribonucleotide biosynthesis, this enzyme catalyses the synthesis of adenylosuccinate from GTP, imp, and aspartate with the formation of orthophosphate and GDP. Chemical name: IMP:L-aspartate ligase (GDP-forming) Registry number: EC 6.3.4.4 (12 Dec 1998) |
impact |
1. Contact or impression by touch; collision; forcible contact; force communicated. "The quarrel, by that impact driven." (Southey) 2. <mechanics> The single instantaneous stroke of a body in motion against another either in motion or at rest. Source: Websters Dictionary (01 Mar 1998) |
impact fusion |
<radiobiology> Fusion approach where a fuel projectile is acclerated and impacted into either a stationary target or another projectile. This is valuable for scientific purposes but not a candidate for a fusion energy source because the likelihood of fusion occurring in a single collision is too low. Multiple accelerated pellets colliding with spherical symmetry might be a viable inertial confinement approach. An impact fusion driver accelerates the macroparticles and is used in inertial confinement fusion. (13 Nov 1997) |
impact resistance |
The ability of a lens for eyewear to withstand impact without shattering or breaking, i.e., of a 3/8 -inch steel ball dropped 50 feet; criteria for determination of impact resistance are specified by U.S. Regulations. (05 Mar 2000) |
impacted |
Driven together or close. <surgery> Impacted fracture, a fracture in which the fragments are driven into each other so as to be immovable. Source: Websters Dictionary (01 Mar 1998) |
impacted foetus |
A foetus which, because of its large size or narrowing of the pelvic canal, has become wedged and incapable of spontaneous advance or recession. (05 Mar 2000) |
impacted fracture |
A fracture in which one of the fragments is driven into the cancellous tissue of the other fragment. (05 Mar 2000) |
impacted teeth |
<dentistry> Teeth that have not fully erupted into their normal position. (15 Nov 1997) |
impacted tooth |
<dentistry> A tooth which is within the alveolus (the tooth socket within the alveolar bone of the jaw) and is prevented from erupting into its normal position. (27 Sep 1997) |
impaction |
1. <surgery> The driving of one fragment of bone into another so that the fragments are not movable upon each other; as, impaction of the skull or of the hip. 2. <medicine> An immovable packing;, a lodgment of something in a strait or passage of the body; as, impaction of the foetal head in the strait of the pelvis; impaction of food or feces in the intestines of man or beast. Origin: L. Impactio a striking: cf. F. Impaction. Source: Websters Dictionary (01 Mar 1998) |
impaction, dental |
Teeth pressing together. For example, molar teeth (the large teeth in the back of the jaw) can be impacted, cause pain and require pain medication, antibiotics, and surgical removal. (12 Dec 1998) |
impaired glucose tolerance |
Blood glucose (sugar) levels higher than normal but not high enough to be called diabetes. People with impaired glucose tolerance may or may not develop diabetes. Other names (no longer used) for impaired glucose tolerance are borderline, subclinical, chemical, or latent diabetes. (30 Mar 1998) |
impairment |
A physical or mental defect at the level of a body system or organ. The official WHO definition is: any loss or abnormality of psychological, physiological or anatomical structure or function. (05 Mar 2000) |
cyclic imp |
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