What's the difference between indispensable and necessary?

Indispensable


Definition:

  • (a.) Not dispensable; impossible to be omitted, remitted, or spared; absolutely necessary or requisite.
  • (a.) Not admitting dispensation; not subject to release or exemption.
  • (a.) Unavoidable; inevitable.

Example Sentences:

  • (1) She was organised, good with people, very grown up and quickly proved herself to be indispensable.
  • (2) The lack of any easy clinical characteristic objectivisation often prevents easy recognition and complex diagnostic investigation is therefore indispensable.
  • (3) Duplex and color Doppler sonography have become indispensable for evaluating the major vessels of the abdomen.
  • (4) The data presented here indicate that renal clearance is not indispensable for eliminating etoposide.
  • (5) Therefore, observance of the generally accepted withdrawal time of 10 days is indispensable.
  • (6) Nurses are an indispensable part of these urban health teams and, if they are not already, should start now to become involved in urban policymaking and planning and consider how their national nurses' association can individually or collaboratively support healthy city projects and national healthy city networks.
  • (7) It is indispensable to establish a close cooperation between the public health authorities and the private physician, and we therefore wish to sincerely thank all colleagues and Public Health Officers for their collaboration.
  • (8) Treasury secretary Tim Geithner called her an "exceptional talent" whose broad experience would "provide invaluable leadership for this indispensable institution at a critical time for the global economy".
  • (9) These changes facilitate radium therapy which remains an indispensable arm for sterilizing primary lesions.
  • (10) "We will take part as requested … An agreement is indispensable for Europe, and not just Europe ," UniCredit chief executive Federico Ghizzoni told reporters in Rome, according to Reuters.
  • (11) A careful physical examination is indispensable, and masses should be evaluated with consideration given to mobility, location, consistency, contour, and site.
  • (12) Using this scoring system it is possible to establish comparable groups of patients - which seems indispensable for a critical examination of various therapeutic procedures.
  • (13) indispensable to attain normal reaching motor functions.
  • (14) This case shows that new or recurrent spinal cord symptoms may be due to a mechanical deformity of the cord rather than shunt malfunction, that restricting the length of the shunt catheter which is used to decompress PTSCCs is important, and that IOSS is an indispensable tool for visualizing the changes in spinal cord morphology during shunting procedures.
  • (15) In 46 patients the standard series was sufficient for diagnosis of allergic occupational contact dermatitis, but in thirty three cases it was indispensable to test them with additional subsances.
  • (16) That is a sign for increasing waste of reciprocal control of adrenal gland and liver, that is indispensable to maintenance of corticosteroid hemostasis.
  • (17) In order to establish whether the periaqueductal gray (PAG) is indispensible for peptide-induced excessive grooming, lesions were placed in the dorsal part of this structure.
  • (18) Polymodal pattern of regulation of this parameter is suggested which includes indispensable participation of both thermal and non-thermal factors of selection.
  • (19) Play is indispensable to human progress and good for individuals.
  • (20) Ultrasound is an indispensable tool for preliminary diagnosis ('filter function'), during treatment ('monitoring function') and in the followup examinations ('follow-up function') after shock wave lithotripsy of gallstones.

Necessary


Definition:

  • (a.) Such as must be; impossible to be otherwise; not to be avoided; inevitable.
  • (a.) Impossible to be otherwise, or to be dispensed with, without preventing the attainment of a desired result; indispensable; requiste; essential.
  • (a.) Acting from necessity or compulsion; involuntary; -- opposed to free; as, whether man is a necessary or a free agent is a question much discussed.
  • (n.) A thing that is necessary or indispensable to some purpose; something that one can not do without; a requisite; an essential; -- used chiefly in the plural; as, the necessaries of life.
  • (n.) A privy; a water-closet.
  • (n.) Such things, in respect to infants, lunatics, and married women, as are requisite for support suitable to station.

Example Sentences:

  • (1) Apparently, the irradiation with visible light of a low intensity creates an additional proton gradient and thus stimulates a new replication and division cycle in the population of cells whose membranes do not have delta pH necessary for the initiation of these processes.
  • (2) The low affinity of several N1-alkylpyrroleethylamines suggests that the benzene portion of the alpha-methyltryptamines is necessary for significant affinity.
  • (3) Intravesical BCG is clearly superior to oral BCG, and controlled studies have demonstrated that percutaneous administration is not necessary.
  • (4) These studies show that metabolic activation is necessary for the expression of the mutagenic activity of aflatoxins B1 and G1 in N. crassa.
  • (5) In practice, however, the necessary dosage is difficult to predict.
  • (6) In order to control noise- and vibration-caused diseases it was necessary not only to improve machines' quality and service conditions but also to pay special attention to the choice of operators and to the quality of monitoring their adaptation process.
  • (7) It is likely that trunk mobility is necessary to maintain integrity of SI joint and that absence of such mobility compromises SI joint structure in many paraplegics.
  • (8) If there is a will to use primary Care centres for effective preventive action in the population as a whole, motivation of the professionals involved and organisational changes will be necessary so as not to perpetuate the law of inverse care.
  • (9) Obamacare price hikes show that now is the time to be bold | Celine Gounder Read more No longer able to keep patients off their plans outright, insurers have resorted to other ways to discriminate and avoid paying for necessary treatments.
  • (10) Duesberg contends that HIV is neither necessary nor sufficient to cause AIDS.
  • (11) It is therefore necessary, to look at typical clinical manifestations, i.e.
  • (12) We have examined the in vitro membrane assembly characteristics of a variety of leader peptidase mutants and found that domains required for insertion in vivo are also necessary for insertion in vitro.
  • (13) Two hours after the administration, the combinations of ethanol plus diazepam and ethanol plus meclophenoxate impaired significantly the number of necessary repetitions.
  • (14) The first experiment gave good results, although only one participant had any previous experience of hinge axis location, and it is debatable whether or not this experience is necessary before satisfactory results can be obtained.
  • (15) For consistent identification of the normal pancreas, preliminary longitudinal scanning at, or near, the mid-line and subsequent oblique scanning in the long axis are necessary prerequisites in delineating the anatomic outline of the pancreas.
  • (16) Survival and healing of "extremely severe" grade intoxication can only be obtained through a surgical intervention within the first hours; a laparotomy will indicate the depth of the lesions, which is not determined by endoscopy, and will consist of Celerier's stripping method and if necessary a gastrectomy, more seldom a cephalic duodeno-pancreatectomy.
  • (17) Socio-economic improvement or behavioural changes appear necessary for the control of trachoma in endemic areas.
  • (18) This stimulation is mediated by one receptor with an apparent affinity of 3.3 X 10(-6) M. The hydroxyl group in the para position on phenylethanolamine was absolutely necessary to obtain an agonist whereas the meta hydroxyl group or the presence of a catechol almost suppressed the activity.
  • (19) Provided that adequate reflection is given and the appropriate moment chosen, it is well tolerated and provides all the necessary information.
  • (20) Total excisional biopsy is necessary to properly assess an adenoma microscopically.