[1] : The Collaborative International Dictionary of English v.0.48

primary \pri"mary\, a. l. primarius, fr. primus first: cf. f.
   primaire. see prime, a., and cf. premier, primero.
   1. first in order of time or development or in intention;
      primitive; fundamental; original.
      1913 webster

            the church of christ, in its primary institution.
                                                  --bp. pearson.
      1913 webster

            these i call original, or primary, qualities of
            body.                                 --locke.
      1913 webster

   2. first in order, as being preparatory to something higher;
      as, primary assemblies; primary schools.
      1913 webster

   3. first in dignity or importance; chief; principal; as,
      primary planets; a matter of primary importance.
      1913 webster

   4. geol. earliest formed; fundamental.
      1913 webster

   5. chem. illustrating, possessing, or characterized by,
      some quality or property in the first degree; having
      undergone the first stage of substitution or replacement.
      1913 webster

   primary alcohol organic chem., any alcohol which possess
      the group ch2.oh, and can be oxidized so as to form a
      corresponding aldehyde and acid having the same number of
      carbon atoms; -- distinguished from secondary  tertiary
      alcohols.

   primary amine chem., an amine containing the amido group,
      or a derivative of ammonia in which only one atom of
      hydrogen has been replaced by a basic radical; --
      distinguished from secondary  tertiary amines.

   primary amputation surg., an amputation for injury
      performed as soon as the shock due to the injury has
      passed away, and before symptoms of inflammation
      supervene.

   primary axis bot., the main stalk which bears a whole
      cluster of flowers.

   primary colors. see under color.

   primary meeting, a meeting of citizens at which the first
      steps are taken towards the nomination of candidates, etc.
      see caucus.

   primary pinna bot., one of those portions of a compound
      leaf or frond which branch off directly from the main
      rhachis or stem, whether simple or compounded.

   primary planets. astron. see the note under planet.

   primary qualities of bodies, such are essential to and
      inseparable from them.

   primary quills zool., the largest feathers of the wing of
      a bird; primaries.

   primary rocks geol., a term early used for rocks supposed
      to have been first formed, being crystalline and
      containing no organic remains, as granite, gneiss, etc.;
      -- called also primitive rocks. the terms secondary,
      tertiary, and quaternary rocks have also been used in like
      manner, but of these the last two only are now in use.

   primary salt chem., a salt derived from a polybasic acid
      in which only one acid hydrogen atom has been replaced by
      a base or basic radical.

   primary syphilis med., the initial stage of syphilis,
      including the period from the development of the original
      lesion or chancre to the first manifestation of symptoms
      indicative of general constitutional infection.

   primary union surg., union without suppuration; union by
      the first intention.
      1913 webster
see also:
prime premier primero primary alcohol ch2.oh secondary  tertiary alcohols 
primary amine secondary  tertiary amines primary amputation primary axis primary colors 
color primary meeting caucus primary pinna primary planets 
planet primary qualities of bodies primary quills primary rocks primitive rocks 
primary salt primary syphilis primary union 

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