first or earliest in a group or series.
Earliest formed; fundamental.
main; principal; chief; placed ahead of others.
Relating to day-to-day care provided by health professionals such as nurses, general practitioners, dentists etc.
Relating to the place where a disorder or disease started to occur.
Illustrating, possessing, or characterized by, some quality or property in the first degree; having undergone the first stage of substitution or replacement.
To challenge (an incumbent sitting politician) for their political party's nomination to run for re-election, through running a challenger campaign in a primary election, especially one that is more ideologically extreme.
To take part in a primary election.
A directly driven inductive coil, as in a transformer or induction motor that is magnetically coupled to a secondary
A primary school.
A primary election; a preliminary election to select a political candidate of a political party.
A radar return from an aircraft (or other object) produced solely by the reflection of the radar beam from the aircraft's skin, without additional information from the aircraft's transponder.
Any flight feather attached to the manus (hand) of a bird.
A base or fundamental component; something that is irreducible.
The most massive component of a gravitationally bound system, such as a planet in relation to its satellites.
The first year of grade school.
A primary colour.
Primary site of disease; original location or source of the disease.
The first stage of a thermonuclear weapon, which sets off a fission explosion to help trigger a fusion reaction in the weapon's secondary stage.
First in time, order, or sequence.
Having its complement closed under multiplication: said only of ideals.
First in excellence, quality, or value.
Early; blooming; being in the first stage.
Such that if it divides a product, it divides one of the multiplicands.
Having exactly two integral factors: itself and unity (1 in the case of integers).
First in importance, degree, or rank.
Marked or distinguished by the prime symbol.
An inch, as composed of twelve seconds in the duodecimal system.
Six consecutive blocks, which prevent the opponent's pieces from passing.
A four-card hand containing one card of each suit in the game of primero; the opposite of a flush in poker.
The symbol ′ used to indicate feet, minutes, derivation and other measures and mathematical operations.
The religious service appointed to this hour.
The most active, thriving, or successful stage or period.
A prime element of a mathematical structure, particularly a prime number.
A feather, from the wing of the cock ostrich, that is of the palest possible shade.
The first defensive position, with the sword hand held at head height, and the tip of the sword at head height.
The first hour of daylight; the first canonical hour.
The chief or best individual or part.
The first note or tone of a musical scale.
An intermediate sprint within a race, usually offering a prize and/or points.
To apply priming to (a musket or cannon); to apply a primer to (a metallic cartridge).
To mark with a prime mark.
To apply a coat of primer paint to.
To prepare a mechanism for its main work.
To serve as priming for the charge of a gun.
To work so that foaming occurs from too violent ebullition, which causes water to become mixed with, and be carried along with, the steam that is formed.
To prepare; to make ready; to instruct beforehand; to coach.