∙ Illustrating, possessing, or characterized by, some quality or property in the first degree; having undergone the first stage of substitution or replacement. chemistry
∙ Relating to the place where a disorder or disease started to occur. medicine
∙ Relating to day-to-day care provided by health professionals such as nurses, general practitioners, dentists etc. medicine
Noun
∙ A primary election; a preliminary election to select a political candidate of a political party.
∙ The first year of grade school.
∙ A base or fundamental component; something that is irreducible.
∙ The most massive component of a gravitationally bound system.
∙ A primary school.
∙ Any flight feather attached to the manus (hand) of a bird. ornithology
∙ A primary colour.
∙ A directly driven inductive coil, as in a transformer or induction motor that is magnetically coupled to a secondary electronics
Verb
∙ To take part in a primary election. US, intransitive
∙ To challenge an incumbent sitting politician for their political party's endorsement to run for re-election, through running a challenger campaign in a primary election US, politics