| second-order kinetics | A term describing the reaction rate of a chemical reaction in which the rate is proportional to the product of the concentrations (in moles) of two of the reactants (also called bimolecular kinetics), or to the square of the molar concentration of the reactant if there is only one. Such a reaction might have an equation like rate = k[A][B] or rate = k[A]2, where k is the reaction rate constant, [A] is the concentration of reactant A, and [B] is the concentration of reactant B. (09 Oct 1997) |
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| second-stability region | <radiobiology> A high pressure region where the plasma becomes stable to the pressure-gradient-driven ballooning instability. The plasma is stable in the limit of small pressure gradients, becomes unstable at some intermediate pressure, and then becomes stable again at still higher pressures. Tokamaks operating in the second-stability region would be more attractive because the higher pressures (beta) would provide more fusion reactivity per unit volume of plasma, allowing smaller reactors to be built. (09 Oct 1997) |
| secondaries | Synonym: metastasis. 2. The lesions of secondary syphilis. (05 Mar 2000) |
| secondarily | 1. In a secondary manner or degree. 2. Secondly; in the second place. "God hath set some in the church, first apostels, secondarily prophets, thirdly teachers." (1 Cor. Xii. 28) Source: Websters Dictionary (01 Mar 1998) |
| secondarily generalised tonic-clonic seizure | A generalised tonic-clonic seizure that begins with a partial seizure and evolves into a generalised tonic-clonic seizure. (05 Mar 2000) |
| secondary | Second or inferior in order of time, place or importance, derived from or consequent to a primary event or thing. Origin: L. Secundarius, secundus = second (18 Nov 1997) |
| secondary abdominal pregnancy | A condition in which the embryo or foetus continues to grow in the abdominal cavity after its expulsion from the fallopian tube or other seat of its primary development. Synonym: abdominocyesis. (05 Mar 2000) |
| secondary adhesion | Delayed closure of two granulating surfaces. Synonym: secondary adhesion, secondary union. (05 Mar 2000) |
| secondary adrenocortical insufficiency | Adrenocortical insufficiency caused by failure of ACTH secretion resulting from anterior pituitary disease or inhibition of ACTH production resulting from exogenous steroid therapy. (05 Mar 2000) |
| secondary aerodontalgia | Pain referred to the dental area from an area of aerosinusitis. (05 Mar 2000) |
| secondary agammaglobulinaemia | Immunodeficiency in which there is no evident defect in the lymphoid tissues, but rather hypercatabolism or loss of immunoglobulins such as occurs in familial idiopathic hypercatabolic hypoproteinaemia or in defects associated with the nephrotic syndrome. Synonym: secondary agammaglobulinaemia, secondary antibody deficiency, secondary hypogammaglobulinaemia. (05 Mar 2000) |
| secondary alcohol | An alcohol characterised by the bivalent atom group (05 Mar 2000) |
| secondary aldosteronism | Aldosteronism resulting not from a defect intrinsic to the adrenal cortex but from a stimulation of hormonal secretion caused by extra-adrenal disorders; associated with increased plasma renin activity and occurs in heart failure, nephrotic syndrome, cirrhosis, and hypoproteinaemia. (05 Mar 2000) |
| secondary amenorrhoea | Amenorrhoea in which the menses appeared at puberty but subsequently ceased. (05 Mar 2000) |
| secondary amine monooxygenase | <enzyme> Catalyses NADH or NADPH dependent oxidative n-dealkylation of short chain aliphatic secondary amines with a methyl or ethyl group Registry number: EC 1.14.99.- Synonym: dimethylamine mono-oxygenase, secondary amine mono-oxygenase (26 Jun 1999) |
Synonyms :
Synonyms : National Security, Measure, Security, Measures, Security, Security Measure, Security, National
| secure |
procure: get by special effort; "He procured extra cigarettes even though they were rationed" free from fear or doubt; easy in mind; "secure himself, he went out of his way to help others" free from danger or risk; "secure from harm"; "his fortune was secure"; "made a secure place for himself in his field" fasten: cause to be firmly attached; "fasten the lock onto the door"; "she fixed her gaze on the man" assure payment of protected: kept safe or defended from danger or injury or loss; "the most protected spot I could find" guarantee: make certain of; "This nest egg will ensure a nice retirement for us"; "Preparation will guarantee success!" not likely to fail or give way; "the lock was secure"; "a secure foundation"; "a secure hold on her wrist" plug: fill or close tightly with or as if with a plug; "plug the hole"; "stop up the leak" impregnable: able to withstand attack; "an impregnable fortress"; "fortifications that made the frontier inviolable" dependable: financially sound; "a good investment"; "a secure investment" batten: furnish with battens; "batten ships"
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| Seconal |
secobarbital sodium: barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions
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| second |
1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites moment: an indefinitely short time; "wait just a moment"; "it only takes a minute"; "in just a bit" second base: the fielding position of the player on a baseball team who is stationed near the second of the bases in the infield moment: a particular point in time; "the moment he arrived the party began" following the first in an ordering or series; "he came in a close second" a 60th part of a minute of arc; "the treasure is 2 minutes and 45 seconds south of here" coming next after the first in position in space or time or degree or magnitude the official attendant of a contestant in a duel or boxing match a speech seconding a motion; "do I hear a second?" coming next after first; "a second chance"; "the second vice president" second gear: the gear that has the second lowest forward gear ratio in the gear box of a motor vehicle; "he had to shift down into second to make the hill" give support or one's approval to; "I'll second that motion"; "I can't back this plan"; "endorse a new project" a part or voice or instrument or orchestra section lower in pitch than or subordinate to the first; "second flute"; "the second violins" in the second place; "second, we must consider the economy" irregular: merchandise that has imperfections; usually sold at a reduced price without the brand name transfer an employee to a different, temporary assignment; "The officer was seconded for duty overseas" having the second highest gear ratio; "second gear"
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| Secale |
cereal grass widely cultivated for its grain: rye
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| second-degree burn |
burn causing blisters on the skin and superficial destruction of the dermis
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| SEC | following the first in an ordering or series |
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| SEC | 1/60 of a minute |
| SEC | a particular point in time |
| SEC | an indefinitely short time |
| SEC | give support or one's blessing to |
| SEC | having the second highest gear ratio |
| SEC | coming next after first |
| SEC | (music) a part or voice or instrument or orchestra section lower in pitch than or subordinate to the first |
| SEC | coming next after the first in position in space or time or degree or magnitude |
| SEC | in the second place |
| SEC | (Christian theology) the reappearance of Jesus as judge for the Last Judgment |
| SEC | any Christian religion that believes the second coming of Christ is imminent |