of the first importance; demanding the fullest consideration:a prime requisite.
of the greatest relevance or significance:a prime example.
of the highest eminence or rank:the prime authority on Chaucer.
of the greatest commercial value:prime building lots.
first-rate:This ale is prime!
(of meat, esp. of beef ) noting or pertaining to the first grade or best quality:prime ribs of beef.
first in order of time, existence, or development; earliest; primitive.
basic; fundamental:the prime axioms of his philosophy.
Mathematics(of any two or more numbers) having no common divisor except unity:The number 2 is prime to 9.
the most flourishing stage or state.
Developmental Biologythe time of early manhood or womanhood:the prime of youth.
the period or state of greatest perfection or vigor of human life:a man in his prime.
the choicest or best part of anything.
(esp. in the grading of U.S. beef ) a grade, classification, or designation indicating the highest or most desirable quality.
the beginning or earliest stage of any period.
the spring of the year.
the first hour or period of the day, after sunrise.
Banking, BusinessSee prime rate.
Religion[Eccles.]the second of the seven canonical hours or the service for it, originally fixed for the first hour of the day.
See prime number.
one of the equal parts into which a unit is primarily divided.
the mark (′) indicating such a division:a, a′.
Sport[Fencing.]the first of eight defensive positions.
Music and Dance
unison (def. 2).
(in a scale) the tonic or keynote.
Linguisticsany basic, indivisible unit used in linguistic analysis.
Metallurgya piece of tin plate free from visible defects.
to prepare or make ready for a particular purpose or operation.
to supply (a firearm) with powder for communicating fire to a charge.
to lay a train of powder to (a charge, mine, etc.).
Hydraulicsto pour or admit liquid into (a pump) to expel air and prepare for action.
Automotiveto put fuel into (a carburetor) before starting an engine, in order to insure a sufficiently rich mixture at the start.
to cover (a surface) with a preparatory coat or color, as in painting.
to supply or equip with information, words, etc., for use:The politician was primed by his aides for the press conference.
to harvest the bottom leaves from (a tobacco plant).
Thermodynamics(of a boiler) to deliver or discharge steam containing an excessive amount of water.
to harvest the bottom leaves from a tobacco plant.
Latin prīma (hōra) first (hour); (verb, verbal) apparently derivative of the adjective, adjectival
Latin prīmusfirst (superlative corresponding to priorprior1); (noun, nominal) in part derivative of the adjective, adjectival; in part continuing Middle English prim(e) first canonical hour, Old English prim
Old French prim)
bef. 1000; 1910–15 for def. 5; (adjective, adjectival) Middle English (
1.See corresponding entry in Unabridged primary.
7.See corresponding entry in UnabridgedPrime,primeval,primitive have reference to that which is first. Prime means first in numerical order or order of development:prime meridian; prime cause.Primeval means belonging to the first or earliest ages:the primeval forest.Primitive suggests the characteristics of the origins or early stages of a development, and hence implies the simplicity of original things:primitive tribes, conditions, ornaments, customs, tools.