What's the difference between countersign and signal?

Countersign


Definition:

  • (v. t.) To sign on the opposite side of (an instrument or writing); hence, to sign in addition to the signature of a principal or superior, in order to attest the authenticity of a writing.
  • (a.) The signature of a secretary or other officer to a writing signed by a principal or superior, to attest its authenticity.
  • (a.) A private signal, word, or phrase, which must be given in order to pass a sentry; a watchword.

Example Sentences:

  • (1) The applicant I had countersigned for had visited a GP surgery where she began talking to another patient who was there for a GP's signature on an application, for a fee of £20.
  • (2) The content of the explanation should be written and countersigned by the patient.
  • (3) Clearly in most cases the doctor does no more than countersign the patient's declaration of his fitness or not to work.
  • (4) My application was reviewed and countersigned by the HMRC chief executive.” He adds it was “HMRC’s chairman who took an interest in the work of the Enforcement and Compliance directorate.
  • (5) Jane Duffield-Bish Norwich • Fifteen years ago, as a police constable, I countersigned a passport application for a resident.
  • (6) I signed it; the cardinal camerlengo [chamberlain] countersigned it; and then, on the balcony, there was the Habemus Papam [announcement of a new pope].
  • (7) The seven passenger manifests, countersigned by travel agents in Mosul, Iraq, and Raqqa, Syria , suggest there was a period of formalised passage on the Syrian side of the border.
  • (8) Speakers from the Islah party, members of which countersigned the deal in Riyadh on Wednesday, were forced to flee for cover in Change Square after a group of youth activists launched a co-ordinated attack on the main stage, pelting it with stones, eggs and plastic bottles and shouting: "Our stage, our revolution, down with the opposition!"
  • (9) Misinterpretations were identified by staff radiologists, who checked all examinations and countersigned the reports.

Signal


Definition:

  • (n.) A sign made for the purpose of giving notice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action.
  • (n.) A token; an indication; a foreshadowing; a sign.
  • (a.) Noticeable; distinguished from what is ordinary; eminent; remarkable; memorable; as, a signal exploit; a signal service; a signal act of benevolence.
  • (a.) Of or pertaining to signals, or the use of signals in conveying information; as, a signal flag or officer.
  • (v. t.) To communicate by signals; as, to signal orders.
  • (v. t.) To notify by a signals; to make a signal or signals to; as, to signal a fleet to anchor.

Example Sentences:

  • (1) Such a signal must be due to a small ferromagnetic crystal formed when the nerve is subjected to pressure, such as that due to mechanical injury.
  • (2) Glucocorticoids have numerous effects some of which are permissive; steroids are thus important not only for what they do, but also for what they permit or enable other hormones and signal molecules to do.
  • (3) Although solely nociresponsive neurons are clearly likely to fill a role in the processing and signalling of pain in the conscious central nervous system, the way in which such useful specificity could be conveyed by multireceptive neurons is difficult to appreciate.
  • (4) Theresa May signals support for UK-EU membership deal Read more Faull’s fix, largely accepted by Britain, also ties the hands of national governments.
  • (5) Type 1 changes (decreased signal intensity on T1-weighted spin-echo images and increased signal intensity on T2-weighted images) were identified in 20 patients (4%) and type 2 (increased signal intensity on T1-weighted images and isointense or slightly increased signal intensity on T2-weighted images) in 77 patients (16%).
  • (6) The presently available data allow us to draw the following conclusions: 1) G proteins play a mediatory role in the transmission of the signal(s) generated upon receptor occupancy that leads to the observed cytoskeletal changes.
  • (7) Thus, human bronchial epithelial cells can express the IL-8 gene, with expression in response to the inflammatory mediator TNF regulated mainly at the transcriptional level, and with elements within the 5'-flanking region of the gene that are directly or indirectly modulated by the TNF signal.
  • (8) The region containing the injection stop signal (iss) has been cloned and sequenced and found to contain numerous large repeats and inverted repeats which may be part of the iss.
  • (9) Here, we review the nature of the heart sound signal and the various signal-processing techniques that have been applied to PCG analysis.
  • (10) The present study was designed to test the hypothesis that the decreased Epi response following ET was due to 1) depletion of adrenal Epi content such that adrenomedullary stimulation would not release Epi, 2) decreased Epi release with direct stimulation, i.e., desensitization of release, or 3) decreased afferent signals generated by ET itself.
  • (11) In documents due to be published by the bank, it will signal a need to shed costs from a business that employs 10,000 people as it scrambles to return to profit.
  • (12) In fact, you might read it as a signal … that the president might well lose on this,” she said.
  • (13) Further study both of the signaling events that lead to MPF activation and of the substrates for phosphorylation by MPF should lead to a comprehensive understanding of the biochemistry of cell division.
  • (14) After several months, a temporal discrimination was well established, as shown by maximum suppression toward the end of the signal period.
  • (15) 2010 2 May : In a move that signals the start of the eurozone crisis, Greece is bailed out for the first time , after eurozone finance ministers agree to grant the country rescue loans worth €110bn (£84bn).
  • (16) Protein kinase C (PKC) is activated rapidly and transiently following ionizing radiation exposure and is postulated to activate downstream nuclear signal transducers.
  • (17) During that time they have repeatedly demonstrated the likely existence of signalling molecules or morphogens that control the pattern of development in the embryo.
  • (18) Recently, we have designed a series of simplified artificial signal sequences and have shown that a proline residue in the signal sequence plays an important role in the secretion of human lysozyme in yeast, presumably by altering the conformation of the signal sequence [Yamamoto, Y., Taniyama, Y., & Kikuchi, M. (1989) Biochemistry 28, 2728-2732].
  • (19) After calving, probably the position of new follicles is temporally influenced by direct signals from the uterine horns affected differently by pregnancy.
  • (20) The purpose of the present study was to investigate whether the signaling behaviors of female Long-Evans rats varies over the estrous cycle.

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