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Primer vs Null - What's the difference?

primer | null |

As nouns the difference between primer and null

is that primer is an elementary textbook introducing a topic, or teaching basic concepts while null is zero, nil; the cardinal number before einn.

As an adjective primer

is (obsolete) first; original; primary.

primer

English

Noun

(en noun)
  • An elementary textbook introducing a topic, or teaching basic concepts.
  • An elementary book for teaching children to learn the alphabet and to read, write and spell.
  • New Latin Primer (an introductory grammar, published 2008)
  • (biology) A single-stranded nucleic acid molecule required for the of a DNA molecule.
  • Any substance used to start a fire.
  • A small charge that burns furiously when given sufficient electrical current () that ignites the main combustable substances in explosives or ammunition.
  • A layer of paint designed to underlay a topcoat, used to enhance the adhesion and durability of the topcoat and help in protection of the surface.
  • A device used to circulate gasoline into the ignition chamber of an engine.
  • Adjective

    (-)
  • (obsolete) First; original; primary.
  • * Drayton
  • the primer English kings

    Derived terms

    * primer fine * primer seizin English heteronyms ----

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
  • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
  • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis
  • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
  • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.
  • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
  • (Milton)

    See also

    * nil ----