refractoriness
71reentry — Return of the same impulse into a zone of heart muscle that it has recently activated, sufficiently delayed that the zone is no longer refractory, as seen in most ectopic beats, reciprocal rhythms, and most tachycardias. * * * re·en·try ( )rē en… …
72rule — A criterion, standard, or guide governing a procedure, arrangement, action, etc. SEE ALSO: law, principle, theorem. [O. Fr. reule, fr. L. regula, a guide, pattern] Abegg r. the tendency of the sum of the …
73Core (manufacturing) — A core is a device used in casting and molding processes to produce internal cavities and reentrant angles. The core is normally a disposable item that is destroyed to get it out of the piece.[1] They are most commonly used in sand casting, but… …
74Mir Jumla II — For other people named Mir Jumla, see Mir Jumla (disambiguation). Mir Jumla II (1591 – 30 March 1663) (Urdu: مير جملا) was a prominent subahdar (governor, but today known as king) of Bengal in Eastern India under the Mughal Emperor Aurangzeb. An… …
75reentrant mechanism — reentry mechanism the mechanism by which a locus of unidirectional block to conduction in cardiac muscle can result in ectopic beats or tachyarrhythmias. In addition to the block, also required are at least areas of slow conduction and… …
76menopause praecox — premature menopause premature cessation of ovulation and menstrual cycles, occurring before age 40, sometimes caused by primary germ cell deficiency, acquired refractoriness to pituitary gonadotropin, or autoimmunization. Called also premature… …
77leading circle model — in cardiology, a multidimensional model of reentry that describes the cycle of alternating tissue activation and refractoriness in terms of a functional, rather than anatomical, intertissue interface acting as a barrier around which the… …
78vitamin D–dependent rickets type II — an autosomal recessive disorder similar to type I but with elevated serum concentrations of 1,25 dihydroxyvitamin D. The disorder cannot be overcome by high levels of vitamin D or its metabolites and is caused by end organ refractoriness to the… …
79antagonism — Synonyms and related words: abhorrence, abomination, aggression, aggressiveness, allergy, animosity, animus, annulling, antipathy, antithesis, argumentation, aversion, backlash, bad blood, bellicism, bellicosity, belligerence, belligerency,… …
80antipathy — Synonyms and related words: Anglophobia, Russophobia, abhorrence, abomination, allergy, anathema, animosity, animus, antagonism, anti Semitism, antithesis, averseness, aversion, avoidance, backlash, backwardness, bad blood, belligerence, bigotry …
