- first in time or order of development; primitive; original; earliest
- from which others are derived; fundamental; elemental; basic
- designating colors regarded as basic, or as those from which all others may be derived: classification of colors as primary varies
- of or in the first stage of a sequence; elementary: primary school
- first in importance; chief; principal; main: a primary concern
- firsthand; direct: a primary source of information
- characterized by or resulting from the replacement of one atom or radical
- characterized by groups or radicals that are attached to the end carbon atom of a chain, i.e., to a CH group (Ex.: primary alcohols, CHOH; primary amines, CHNH)
- Elec. designating or of an inducing current, input circuit, or input coil in a transformer, induction coil, etc.
- formed directly by sedimentation, solidification, or precipitation and not subsequently altered: said of rocks
- Obsolete designating or of the earliest geological periods, up through the Paleozoic Era
- Linguis. having as its fundamental form a base or other element that cannot be broken down: said of derivation
- Med. designating or having to do with the initial medical care given to a patient, before referral to another doctor, a specialist, etc.
- Zool. designating or of the large, stiff feathers on the last section, or hand, of a bird's wing
ME prymary < L primarius < primus, first: see prime