- primitive rocks
- Primary Pri"ma*ry, 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amine} (Chem.), an amine containing the amido group, or a derivative of ammonia in which only one atom of hydrogen has been replaced by a basic radical; -- distinguished from {secondary & tertiary amines}.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} (Zo["o]l.), 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]
The Collaborative International Dictionary of English. 2000.
