from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A mode or state of being: synonym: state.
  • noun Existing circumstances.
  • noun Archaic Social position; rank.
  • noun A state of health.
  • noun A state of physical fitness.
  • noun A disease or physical ailment.
  • noun One that is indispensable to the appearance or occurrence of another; a prerequisite.
  • noun One that restricts or modifies another; a qualification.
  • noun Grammar The dependent clause of a conditional sentence; protasis.
  • noun Logic A proposition on which another proposition depends; the antecedent of a conditional proposition.
  • noun A provision making the effect of a legal instrument contingent on the occurrence of an uncertain future event.
  • noun The event itself.
  • transitive verb To make dependent on a condition or conditions.
  • transitive verb To stipulate as a condition.
  • transitive verb To cause to be in a certain condition; shape or influence:
  • transitive verb To accustom (oneself or another) to something; adapt.
  • transitive verb To render fit for work or use.
  • transitive verb To improve the physical fitness of (the body, for example), as through repeated sessions of strenuous physical activity.
  • transitive verb Psychology To cause (an organism) to respond in a specific manner to a conditioned stimulus in the absence of an unconditioned stimulus.
  • transitive verb To treat (the air in a room, for example) by air-conditioning.
  • transitive verb To replace moisture or oils in (hair, for example) by use of a therapeutic product.

from The Century Dictionary.

  • To form a condition or prerequisite of; determine or govern.
  • To subject to something as a condition; make dependent or conditional on: with on or upon: as, he conditioned his forgiveness upon repentance.
  • In metaphysics, to place or cognize under conditions.
  • To stipulate; contract; arrange.
  • In mercantile language, to test (a commodity) in order to ascertain its condition; specifically, to test (silk) in order to know the proportion of moisture it contains.
  • To require (a student) to be reëxamined, after failure to show the attainment of a required degree of scholarship, as a condition of remaining in the class or college, or of receiving a degree. See condition, n., 9.
  • noun The particular mode of being of a person or thing; situation, with reference either to internal or to external circumstances; existing state or case; plight; circumstances.
  • noun Quality; property; attribute; characteristic.
  • noun A state or characteristic of the mind; a habit; collectively, ways; disposition; temper.
  • noun Rank; state, with respect to the orders or grades of society or to property: used absolutely in the sense of high rank: as, a person of condition.
  • noun A requisite; something the non-concurrence or non-fulfilment of which would prevent a result from taking place; a prerequisite.
  • noun Hence A restricting or limiting circumstance; a restriction or limitation.
  • noun A stipulation; a statement of terms; an agreement or consideratíon demanded or offered in return for something to be granted or done, as in a bargain, treaty, or other engagement.
  • noun In law: A statement that a thing is or shall be, which constitutes the essential basis or an essential part of the basis of a contract or grant; a future and uncertain act or event not belonging to the very nature of the transaction, on the performance or happening of which the legal consequences of the transaction are made to depend.
  • noun In civil law, a restriction incorporated with an act, the consequence of which is to make the effect of the volition or intention dependent wholly or in part upon an external circumstance.
  • noun In a college or school: The requirement, made of a student upon failure to reach a certain standard of scholarship, as in an examination, that a new examination be passed before he can be advanced in a given course or study, or can receive a degree: as, a condition in mathematics.
  • noun The study to which such requirement is attached: as, he has six conditions to make up.
  • noun In grammar, the protasis or conditional clause of a conditional sentence. See conditional sentence, under conditional.
  • noun In the theory of errors, an equation expressing an observation with the conditions under which it was taken.
  • noun Article, terms, provision, arrangement.
  • In the tobacco trade, to spray with a 2-per-cent. solution of glycerin. This operation is performed only on chewing, plug, and cigarette tobaccos.

from the GNU version of the Collaborative International Dictionary of English.

  • noun Mode or state of being; state or situation with regard to external circumstances or influences, or to physical or mental integrity, health, strength, etc.; predicament; rank; position, estate.


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English condicioun, from Old French condicion, from Late Latin conditiō, conditiōn-, alteration of Latin condiciō, from condīcere, to agree : com-, com- + dīcere, to talk; see deik- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin conditiō, noun of action from perfect passive participle conditus, + noun of action suffix -io.



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