Main definitions of primer in English

: primer1primer2

primer1

noun

  • 1A substance used as a preparatory coat on previously unpainted wood, metal, or canvas, especially to prevent the absorption of subsequent layers of paint or the development of rust.

    • ‘First, encapsulate the peeling paint by applying a couple of coats of thick primer.’
    • ‘Use caulk to seal all the joints between the bathtub and the covered frame, and coat the wallboard or plywood with moisture resistant primer to seal it.’
    • ‘The primer and top coat should be compatible and preferably from the same manufacturer.’
    • ‘Taking a break from applying the paint to the shingles - a very smelly and unpleasant job - Graham has been sanding down the woodwork and applying a coat of primer.’
    • ‘The zinc phosphate-coated bodyshell then gets a coat of primer which provides more corrosion protection, along with a good base for the colour coat itself.’
    • ‘Research shows that one coat of tinted primer and one coat of paint will give you a better paint job than two coats of paint.’
    • ‘Block-out primers prevent the old paint's color from bleeding through if the previous color is darker or brighter than the new.’
    • ‘Sand the areas until they are smooth and coat them with interior primer and let it dry completely.’
    • ‘Coated with layers of lacquer, primer, and polychrome, the portrait shows its age in pigment loss and cracks along the face and figure.’
    • ‘Paint each plate rail with primer and two coats of white enamel.’
    • ‘An oil-base primer or stain-blocking latex primer should be applied to the bare wood.’
    • ‘The board walls have a layer of primer and a top layer of blue paint on which the stenciled designs were painted in green, red, black, and ocher, and then a layer of varnish was applied.’
    • ‘Aluminum siding, however, has a baked enamel finish so it can be sanded or scuffed up, then primed with a special etching primer developed just for this purpose.’
    • ‘As a general rule, the sequence is primer and undercoat on the woodwork, followed by two coats of emulsion on the walls, then a careful top coat around the woodwork.’
    • ‘This special primer for wall covering is available at any paint, wallpaper or home improvement store.’
    • ‘Fungicides may be added to paint, primer or wallpaper paste to slow fungus growth on treated areas.’
    • ‘Oil based primer works best because the paint sticks to it.’
    • ‘While much of the Scylla still displays the remnants of the original Royal Navy grey paintwork, with patches of rust showing through, the railings have what looks like a fresh coat of silver primer.’
    • ‘Four coats of primer, two layers of drywall mud, three coats of paint, 108 hours of work, and some other miscellaneous steps later, the bathroom is complete.’
    • ‘Bare spackling on any wall repairs should always be covered with primer before paint or wall paper.’
    1. 1.1 A cosmetic applied to the face before another product, intended to improve the coverage and lasting effect of the second product.
      ‘it's best to apply primer around the eye to help the makeup blend properly’
      • ‘Touching your face can wreak havoc on your makeup, even if you wear a primer.’
      • ‘Primer is one of those beauty secrets that can make a big difference in the look and wear of your makeup.’
      • ‘Eyeshadow primer is a must for me - I don’t put color on my lids without putting on some primer first.’
      • ‘I'm not a fan of lip primers, but this one was amazing and a lot more smoothing and lasting than most out there.’
      • ‘Skin Base can be used as a primer, concealer or foundation and is available in 18 shades.’
      • ‘I have never needed primer: nothing shifts on my eyelids.’
      • ‘If you have not tried foundation primer, you will find that it helps give you that completed look that you may have been striving for.’
  • 2A cap or cylinder containing a compound which responds to friction or an electrical impulse and ignites the charge in a cartridge or explosive.

    • ‘When ignited by the primer, the igniter sends hot flaming gases around the charge to ignite the propellant.’
    • ‘The honest concern is about airborne lead ejected by the primer and bullet when a cartridge is fired.’
    • ‘When a firing pin drops on a primer igniting the powder charge, the cartridge and cylinder move slightly forward.’
    • ‘The case is designed for rifle primers, and small rifle primers are used even when loading for handguns.’
    • ‘Lead is a key component in primers as well as bullets, and is responsible for holding together other chemicals that create the controlled explosion of the primer.’
  • 3A small pump for pumping fuel to prime an internal combustion engine, especially in an aircraft.

    • ‘While cranking, keep your hand on the primer so you can give it a quick shot as the cylinders fire.’
    • ‘The engine primer needs to be used only if the engine is ‘cold-soaked’ (at least 5 hours since it was last run).’
  • 4Biochemistry
    A molecule that serves as a starting material for a polymerization process.

    • ‘It is also possible that the first-group enzymes play important roles in the de novo synthesis of glucan primers and the initiation of starch granules in the endosperm.’
    • ‘Sampling occurs when the extract is pipetted into the PCR mix and again when the primers and polymerase bind the template DNA in the PCR.’
    • ‘The additional nucleotide used on both primers was adenine.’
    • ‘The attached glucose is believed to serve as the primer required by glycogen synthase.’
    • ‘The primase utilizes the DNA strands as templates and synthesizes a short stretch of RNA generating a primer for DNA polymerase.’

Pronunciation

primer

/ˈpraɪmər//ˈprīmər/

Main definitions of primer in English

: primer1primer2

primer2

noun

  • An elementary textbook that serves as an introduction to a subject of study or is used for teaching children to read.

    • ‘Heavy metal is far too broad and complex a topic to cover in depth over the course of one film, but A Headbanger's Journey is an excellent primer on the subject.’
    • ‘For one thing, the division between empiricism and rationalism is not as neat as many philosophy primers would have you believe.’
    • ‘Read only as a biographical primer, Houdini's Box captures the arc of Houdini's life.’
    • ‘Leda Cosmides and John Tooby have produced an excellent primer on the subject so we will use that as a point of reference throughout this post.’
    • ‘Regarding the bonus content, we are treated to a full length, scene-specific commentary by director Macer that is a textbook primer for first time filmmakers.’
    • ‘His strategy ended up paying huge dividends for StockMaster and can serve as a useful primer on capital-raising fundamentals for any company.’
    • ‘For mural lovers, the book is a primer, rather a guide.’
    • ‘It's no substitute for a proper textbook on the subject, but it's a good primer.’
    • ‘This is perhaps the strongest section of the book, and serves as a great primer for beginning graduate students and non-specialists.’
    • ‘In sum, Guide to Space serves as an excellent primer for nonscientific readers.’
    • ‘I've been for the last couple of years, looking at children's books, looking at primers that kids read in first grade and second grade, over this century.’
    • ‘Despite its title, it is not intended to be either a textbook or a primer on specific debates among historians.’
    • ‘Michael Stacey has written a good primer on his subject.’
    • ‘Undeterred, Heavey flew to Senegal, reading an oil primer en route to learn the lingo.’
    • ‘Children used to learn to read from primers that showed pictures of things with their names underneath, to teach them what the written signifier meant.’
    • ‘For the uninitiated, the book is a good primer for those readers seeking an introduction to the work of this towering American intellectual.’
    • ‘Nairne's introduction to the art market should serve as a primer for young artists and art historians to understand the institutional structures that control the art market.’
    • ‘Gaustad's work is unique in this regard and will serve as one of the best historical primers on the subject for years to come.’
    • ‘In a not-so-obvious way, the book and the journal serve as a preschool primer in anger-management therapy.’
    • ‘Clearly written, reasonably comprehensive, and addressing contemporary issues this book could well serve as a stimulating primer on imperial history.’
    handbook, manual, guide, reference book, instruction book, abc
    View synonyms

Origin

Late Middle English: from medieval Latin primarius (liber) ‘primary (book)’ and primarium (manuale) ‘primary (manual)’.

Pronunciation

primer

/ˈprimər//ˈprɪmər/