What's the difference between perquisite and prerequisite?

Perquisite


Definition:

  • (n.) Something gained from a place or employment over and above the ordinary salary or fixed wages for services rendered; especially, a fee allowed by law to an officer for a specific service.
  • (n.) Things gotten by a man's own industry, or purchased with his own money, as opposed to things which come to him by descent.

Example Sentences:

  • (1) Multicellular tumor spheroids (MTS) provide a closer in vitro correlate to in vivo malignancy than do conventional monolayer cultures; while simulating many parameters of in vivo growth, MTS systems provide those perquisites (i.e., experimental control, economy, expediency) associated with in vitro evaluation of preclinical therapeutic strategies.
  • (2) Persons insured in Group 2, on payment of a premium, obtain certain perquisites as compared with Group 1, primarily they may consult general practitioners and specialists of their own choice.

Prerequisite


Definition:

  • (a.) Previously required; necessary as a preliminary to any proposed effect or end; as, prerequisite conditions of success.
  • (n.) Something previously required, or necessary to an end or effect proposed.

Example Sentences:

  • (1) Confidence is the major prerequisite for a doctor to be able to help his seriously ill patient.
  • (2) The high participation percentage also shows that the prerequisite of screening, namely, a positive attitude on the part of the population, was as well fulfilled in the present project.
  • (3) 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.
  • (4) This quantitative characterization of the properties of conduction and refractoriness of both the accessory pathway and ventriculoatrial conduction system and the relation between these characteristics and the accessory pathway location in ART patients provides additional insight into the prerequisites for the initiation and maintenance of this rhythm disturbance.
  • (5) She has imbued me with the confidence of encouraging other girls to dream alternative futures that do not rely on FGM as a prerequisite.
  • (6) The prerequisite for all champions is the refusal to cave in, so City's equaliser with only three minutes remaining was pleasing.
  • (7) To meet these prerequisites we have introduced some technical refinements: (1) computer-controlled rectilinear translations of the target in combination with different angular positions of the source and (2) computer-controlled rotations of the target around a vertical axis in combination with different angular positions of the source.
  • (8) Binding of the ilvY product at the O1 and O2 operator sites is co-operative and this ilvY protein-DNA complex in the presence of acetohydroxy acid isomeroreductase substrate is a prerequisite for RNA polymerase binding to the ilvC promoter as detected by DNase I protection experiments.
  • (9) These results point to HPV16 as one potential prerequisite for the first steps in the multistage development of human cervical cancer.
  • (10) Other experiments further implicated actin in the budding process during virus maturation, as there appeared to be a specific association of actin in vitro only with nucleocapsids that have terminated RNA synthesis, which is presumably a prerequisite to budding.
  • (11) We conclude that retained gastric peristaltic function is not a prerequisite for a good clinical outcome for swallowing and that despite vagotomy, the stomach continues to produce enough acid to maintain an acidic pH.
  • (12) The failure of agents which inhibit motility to inhibit capping of the normal lymphocytes suggests that active locomotion is not a direct prerequisite for capping.
  • (13) Compaction of the morula is a prerequisite for subsequent differentiation of the mouse embryo.
  • (14) Close cooperation of ophthalmological departments with vitreoretinal centres and early performance of urgent surgery are the basic prerequisites of better functional results of PPV in EHE.
  • (15) Oximeformation, for which keto acid production is a prerequisite, is discussed as part of the HA-tolerance.
  • (16) The capacity to sublimate and to foster sublimation in children is a prerequisite for normal motherhood.
  • (17) In addition, otoscopic accuracy is a prerequisite to optimal patient care.
  • (18) Such markers are prerequisites for therapeutic trials with potent drugs which are only justified for patients with fulminant hepatitis and patients with progression to chronicity.
  • (19) The article reviews practical aspects of tissue fixation and embedding protocols as well as methodologic aspects of the protein A-gold technique; careful control of these interrelated factors is the prerequisite for successful application.
  • (20) As a prerequisite for preparing bispecific antibody conjugates containing anti-tumor and anti-metal chelate binding sites that can be used for pretargeted immunoscintigraphy, monoclonal antibodies (Mabs) have been raised against an octahedral metal chelate synthetized from gallium (Ga) and the hexadentate ligand N,N'bis[2-hydroxy 5-(ethylene beta carboxy) benzyl] ethylenediamine N,N' diacetic acid (Ga-HBED-CC).