What's the difference between forerunner and precursor?

Forerunner


Definition:

  • (n.) A messenger sent before to give notice of the approach of others; a harbinger; a sign foreshowing something; a prognostic; as, the forerunner of a fever.
  • (n.) A predecessor; an ancestor.
  • (n.) A piece of rag terminating the log line.

Example Sentences:

  • (1) The role such a unit may have as a forerunner of the formation of similar units in other specialities of medicine is emphasized.
  • (2) This spontaneous mechanism of O2 reduction with the generation of oxidized drug free radicals and reduced oxygen free radicals is unprecedented among anticancer drugs, suggesting that fredericamycin A could be the forerunner of a new class of anticancer drug.
  • (3) In the first two trimesters they are the forerunners of the immature intermediate villi, whereas in the last trimester the mesenchymal villi are transformed into mature intermediate villi.
  • (4) "Bean has done to Goldoni what Goldoni did to his forerunners.
  • (5) Omeprazole and lansoprazole are the forerunners of a group of substituted benzimidazole compounds that block the gastric proton pump.
  • (6) He was thought to be the forerunner for The Tonight Show after Johnny Carson retired in 1992.
  • (7) So in that sense I prefer the days of Cathy.” In the 60s and 70s, Loach belonged to small leftist groups: the Socialist Labour League (forerunner of the Workers Revolutionary Party ), the International Socialists , the International Marxist Group, all critical of both western capitalism and the Stalinism of the Soviet Union.
  • (8) Though he strongly disapproved of much of what later took shape as "New Labour", which he saw, among other things, as historically cowardly, he was without question the single most influential intellectual forerunner of Labour's increasingly iconoclastic 1990s revisionism.
  • (9) These were forerunners of today's "conscious hip-hop" (not for nothing is Gamble and Huff's catalogue among the most ransacked by rappers for samples).
  • (10) The finding of elevated D2 dopamine receptors in schizophrenia in living patients may be the forerunner of a new biochemical approach to psychiatry.
  • (11) A radiolabeled form of the benzonaphthazephine, SCH39166 was used to characterize the binding of this D1 antagonist in cortex, and an autoradiographic comparison of the localization of [3H]SCH39166 to [3H]SCH23390 (D1 antagonist and forerunner of SCH39166) binding was performed.
  • (12) Sir Christopher Bland, who was chairman of Trust forerunner the BBC board of governors from 1996-2001, said his advice to Fairhead was to "cancel her subscription to any cuttings agency and grow a second skin".
  • (13) It may be a forerunner of similar confrontations to come elsewhere.
  • (14) It is therefore the forerunner of later computer processing developments and, in the words of English Heritage's report: "A uniquely important site, arguably as significant to the information age as Ironbridge is to the industrial revolution."
  • (15) In South Africa in the 1940s a team headed by Sidney Kark embarked on work in the Pholela region of Natal that became the forerunner of ideas that were later formalized and systematized under the rubric of community oriented primary care.
  • (16) The union and its forerunners have for over six decades contributed to the advancement of peace and reconciliation, democracy and human rights in Europe.
  • (17) These educated young women may be forerunners, and an increase in diagphragm use in the general population may be seen in the near future.
  • (18) It would be easy to knock The X Factor and its forerunners as pop poison, ruining Christmas for everyone between the ages of eight and 80.
  • (19) After Skorodumov’s death, the NKVD, the forerunner of the KGB, raided his collection.
  • (20) When these headaches are recognized as a forerunner to stroke, they may allow an opportunity for preventive treatment.

Precursor


Definition:

  • (n.) One who, or that which, precedes an event, and indicates its approach; a forerunner; a harbinger.

Example Sentences:

  • (1) After 4 to 6 hours of recirculation, accumulation of vasoactive amine, 5-hydroxytryptamine, its major metabolite, 5-hydroxyindole acetic acid, and its precursor amino acid, tryptophan were detected.
  • (2) Compound Z has the properties expected of an oxidized MPT precursor.
  • (3) Moreover in MIT-1, the size of the novel polypeptide was not that predicted of the precursor (44.9 kDa) but was about 39 kDa, the same size as the authentic GS gamma polypeptide in CYT-4.
  • (4) It is possible that the elements provide common precursor proteins that reach the secretory intermediate lobe cells through their dendritic branches.
  • (5) The present in vitro studies show that it is found as beta-endorphin in bovine pituitary slices incubated with radioactive amino acid precursor [35S]methionine.
  • (6) Our study suggests that a major part of the renal antimineralocorticoid activity of spironolactone may be attributable to minor sulfur-containing metabolites or their precursors having a high renal clearance that affords access to their site of activity via the renal tubular fluid.
  • (7) When an expression vector containing plasminogen cDNA is transfected into baby hamster kidney cells, the number of drug-resistant colonies as well as the levels of plasminogen secreted by those colonies is lower than observed in similar transfections of other protease precursor genes.
  • (8) These series were prepared by oxidation of the new hydroquinone precursors.
  • (9) Administration of one of the precursors of noradrenaline l-DOPA not only prevented the decrease in tissue noradrenaline content in myocardium, but restored completely its reserves, exhausted by electrostimulation of the aortic arch.
  • (10) By 3 d in the chick embryo, the first neurons detected by antibodies to Ng-CAM are located in the ventral neural tube; these precursors of motor neurons emit well-stained fibers to the periphery.
  • (11) From this proliferating layer, precursor cells migrate outwards to reach the developing neostriatum in a sequential fashion according to two gradients of histogenesis.
  • (12) If this is what 70s stoners were laughing at, it feels like they’ve already become acquiescent, passive parts of media-relayed consumer society; precursors of the cathode-ray-frazzled pop-culture exegetists of Tarantino and Kevin Smith in the 90s.
  • (13) Fiber may have a protective role because of its influence on estrogen metabolism and excretion or because of the endocrine effects of the lignans, a family of compounds formed in the intestine from fiber-associated precursors.
  • (14) Furthermore it is this small compartment that is preferentially radioactively labelled during short-term incubations with radioactively labelled precursors.
  • (15) One important consequence of the conservative mode of replication is that cellular enzymes never gain access to the reovirus genome but only to its ssRNA precursors.
  • (16) The results from rabbit experiments suggest that the 12S protein, probably represents a precursor of TG.
  • (17) In vitro import assays indicate that ATP12 protein is synthesized as a precursor approximately 3 kDa larger than the mature protein.
  • (18) Tritium-labeled ribonucleic acid precursors, including cytidine, uridine, and orotic acid, were injected into rats with dated pregnancies (14 to 21 days) and virgin rats.
  • (19) Pulse-chase experiments showed that the ornithine transcarbamylase precursor and the thiolase traveled from the cytosol to the mitochondria with half-lives of less than 5 min, whereas the three fusion proteins traveled with half-lives of 10-15 min.
  • (20) The results show that centrally administered serotonin, the serotonin precursor, 5-hydroxytryptophan administered with clorgyline, a selective MAO A inhibitor, quipazine, a serotonin receptor agonist, and fluoxetine, a selective inhibitor of neuronal re-uptake of serotonin, attenuated all paradigms of FIA and apomorphine induced potentiation of FIA.