Definition of lancet in US English:



  • 1A small, broad two-edged surgical knife or blade with a sharp point.

    • ‘Once all the drops are in place, the nurse takes a tiny, pointed, plastic instrument called a lancet and scratches the skin through each droplet of extract.’
    • ‘Medical wastes are defined as discarded sharps (needles, scalpel blades, lancets, and broken glass) and potentially infectious wastes.’
    • ‘The lancets are designed to enter no deeper than 2-3 mm.’
    • ‘Single-use throwaway lancets are used for haemoglobin check and single-use disposable transfusion sets that are attached to blood bags are used during the process of donation.’
    • ‘Patients use the kit's finger lancet to collect blood while routinely checking their blood glucose levels.’
    • ‘‘No one has a product on the market that will let people throw away their lancets,’ he says.’
    • ‘Discard the lancet into a biohazard sharps container.’
    • ‘Years later, falsely imprisoned for mutilating animals with a lancet, George writes to Doyle for help.’
    • ‘You must take you blood from your fingertips, using a spring-loaded ‘pen’ and lancet.’
    • ‘Gauze, alcohol swab, lancet, and bandage are enclosed in one package and sized appropriately for either adult or pediatric patients.’
    • ‘Standardised skin prick tests were carried out with allergen coated lancets.’
    • ‘In eight locations, blood samples were obtained by piercing the skin with a sterile lancet and absorbing a drop of blood on a piece of filter paper.’
    • ‘New devices are being developed to make blood glucose testing less painful than the usual monitoring systems, which involve drawing blood by pricking the skin with a lancet.’
    • ‘Blood samples were obtained by finger lancet or from an arterial catheter.’
    • ‘He extracted teeth, stitched gashes, advised on pneumonia and sunstroke, set broken limbs, used the lancet and the thermometer.’
    • ‘I had to send him a glucometer and test strips and lancets.’
    • ‘Blood was usually taken by opening a vein with a lancet, although bloodsucking leeches were regularly used.’
    • ‘I stumbled out into the early afternoon with my new machine, enough testing strips and pricking lancets to go on with, my marked-up diary and a fuddled brain.’
    • ‘A new lancet is used for each scratch to prevent cross-contamination of allergens.’
  • 2A lancet arch or window.

    • ‘From the high lancets, sunlight streamed in, and the dust motes flared like supernovae as they passed into the light.’
    • ‘Closer to home, the family remained engaged in local affairs, making large donations to St Andrews Martyr's Church, where a beautiful lancet known as Forgan's Window is still preserved.’
    • ‘One of the pieces conserves part of a painted lion, probably a surviving portion of the arms of Louis d' Halluin, which seems to have disappeared from the right lancet.’
    • ‘Any heraldic information that appeared at the top of the central and right lancets has been lost.’
    • ‘Thus the cathedral's most famous window, ‘The Root of Jesse’ in the northern lancet in the west front, depicts the lineage of David and the Jewish kings, culminating in Mary and Jesus.’
    1. 2.1as modifier Shaped like a lancet arch.
      ‘a lancet clock’
      • ‘The heraldic devices of the lancet tops and in the tracery lights represent other of Louis's and Francoise's possessions and ancestors.’
      • ‘The sharply pointed lower ends are interpreted to have articulated in the alternating tiny furrows and ridges at the adoral extremity of each lancet plate surrounding the mouth.’
      • ‘Additional heraldic shields float in the foregrounds below the flanking scenes, as well as in the lancet cusps and the adjacent tracery openings above them.’


Late Middle English (also denoting a small lance): from Old French lancette, diminutive of lance ‘a lance’.