Webster's Dictionary, 1913

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Precipitantly adverb With rash or foolish haste; in headlong manner. Milton.

Precipitantness noun The quality or state of being precipitant; precipitation.

Precipitate adjective [ Latin praecipitatus , past participle of praecipitare to precipitate, from praeceps headlong. See Precipice .]
1. Overhasty; rash; as, the king was too precipitate in declaring war. Clarendon.

2. Lacking due deliberation or care; hurried; said or done before the time; as, a precipitate measure. "The rapidity of our too precipitate course." Landor.

3. Falling, flowing, or rushing, with steep descent; headlong.

Precipitate the furious torrent flows.
Prior.

4. Ending quickly in death; brief and fatal; as, a precipitate case of disease. [ Obsolete] Arbuthnot.

Precipitate noun [ New Latin praecipitatum : confer French précipité .]
1. (Chemistry) An insoluble substance separated from a solution in a concrete state by the action of some reagent added to the solution, or of some force, such as heat or cold. The precipitate may fall to the bottom (whence the name), may be diffused through the solution, or may float at or near the surface.

Red precipitate (Old. Chem) , mercuric oxide (HgO) a heavy red crystalline powder obtained by heating mercuric nitrate, or by heating mercury in the air. Prepared in the latter manner, it was the precipitate per se of the alchemists. -- White precipitate (Old Chem.) (a) A heavy white amorphous powder (NH 2 .HgCl) obtained by adding ammonia to a solution of mercuric chloride or corrosive sublimate; -- formerly called also infusible white precipitate , and now amido-mercuric chloride . (b) A white crystalline substance obtained by adding a solution of corrosive sublimate to a solution of sal ammoniac (ammonium chloride); -- formerly called also fusible white precipitate .

Precipitate transitive verb [ imperfect & past participle Precipitated ; present participle & verbal noun Precipitating .]
1. To throw headlong; to cast down from a precipice or height.

She and her horse had been precipitated to the pebbled region of the river.
W. Irving.

2. To urge or press on with eager haste or violence; to cause to happen, or come to a crisis, suddenly or too soon; as, precipitate a journey, or a conflict.

Back to his sight precipitates her steps.
Glover.

If they be daring, it may precipitate their designs, and prove dangerous.
Bacon.

3. (Chemistry) To separate from a solution, or other medium, in the form of a precipitate; as, water precipitates camphor when in solution with alcohol.

The light vapor of the preceding evening had been precipitated by the cold.
W. Irving.

Precipitate intransitive verb
1. To dash or fall headlong. [ R.]

So many fathom down precipitating .
Shak.

2. To hasten without preparation. [ R.]

3. (Chemistry) To separate from a solution as a precipitate. See Precipitate , noun

Precipitately adverb In a precipitate manner; headlong; hastily; rashly. Swift.

Precipitation noun [ Latin praecipitatio : confer French précipitation .]
1. The act of precipitating, or the state of being precipitated, or thrown headlong.

In peril of precipitation
From off rock Tarpeian.
Shak.

2. A falling, flowing, or rushing downward with violence and rapidity.

The hurry, precipitation , and rapid motion of the water, returning . . . towards the sea.
Woodward.

3. Great hurry; rash, tumultuous haste; impetuosity. "The precipitation of inexperience." Rambler.

4. (Chemistry) The act or process of precipitating from a solution.

Precipitation noun (Meteor.) A deposit on the earth of hail, mist, rain, sleet, or snow; also, the quantity of water deposited.

» Deposits of dew, fog, and frost are not regarded by the United States Weather Bureau as precipitation . Sleet and snow are melted, and the record of precipitation shows the depth of the horizontal layers of water in hundredths of an inch or in millimeters.

Precipitator noun [ Latin praecipitator an overthrower.] One who precipitates, or urges on with vehemence or rashness. Hammond.

Precipitious adjective Precipitous. [ Obsolete] -- Prec`i*pi"tious*ly , adverb [ Obsolete] Dr. H. More.

Precipitous adjective [ Latin praeceps , -cipitis : confer Old French precipiteux . See Precipice .]
1. Steep, like a precipice; as, a precipitous cliff or mountain.

2. Headlong; as, precipitous fall.

3. Hasty; rash; quick; sudden; precipitate; as, precipitous attempts. Sir T. Browne. "Marian's low, precipitous ‘Hush!'" Mrs. Browning.

-- Pre*cip"i*tous*ly , adverb -- Pre*cip"i*tous*ness , noun

Précis (pra`sē") noun [ French See Precise .] A concise or abridged statement or view; an abstract; a summary.

Precise adjective [ Latin praecisus cut off, brief, concise, past participle of praecidere to cut off in front, to cut off; prae before + caedere to cut: confer French précis . Confer Concise .]
1. Having determinate limitations; exactly or sharply defined or stated; definite; exact; nice; not vague or equivocal; as, precise rules of morality.

The law in this point is not precise .
Bacon.

For the hour precise
Exacts our parting hence.
Milton.

2. Strictly adhering or conforming to rule; very nice or exact; punctilious in conduct or ceremony; formal; ceremonious. Addison.

He was ever precise in promise- keeping.
Shak.

Syn. -- Accurate; exact; definite; correct; scrupulous; punctilious; particular; nice; formal. See Accurate .

-- Pre*cise"ly , adverb -- Pre*cise"ness , noun

Precisian noun
1. One who limits, or restrains. [ Obsolete]

2. An overprecise person; one rigidly or ceremoniously exact in the observance of rules; a formalist; -- formerly applied to the English Puritans.

The most dissolute cavaliers stood aghast at the dissoluteness of the emancipated precisian .
Macaulay.

Precisianism noun The quality or state of being a precisian; the practice of a precisian. Milton.

Precisianist noun A precisian.

Precision noun [ Confer French précision , Latin praecisio a cutting off. See Precise .] The quality or state of being precise; exact limitation; exactness; accuracy; strict conformity to a rule or a standard; definiteness.

I have left out the utmost precisions of fractions.
Locke.

Syn. -- Preciseness; exactness; accuracy; nicety. -- Precision , Preciseness . Precision is always used in a good sense; as, precision of thought or language; precision in military evolutions. Preciseness is sometimes applied to persons or their conduct in a disparaging sense, and precise is often used in the same way.

Precisive adjective Cutting off; (Logic) exactly limiting by cutting off all that is not absolutely relative to the purpose; as, precisive censure; precisive abstraction. I. Watts.

Preclude transitive verb [ imperfect & past participle Precluded ; present participle & verbal noun Precluding .] [ Latin praecludere , praeclusum ; prae before + claudere to shut. See Close , v. ]
1. To put a barrier before; hence, to shut out; to hinder; to stop; to impede.

The valves preclude the blood from entering the veins.
E. Darwin.

2. To shut out by anticipative action; to prevent or hinder by necessary consequence or implication; to deter action of, access to, employment of, etc.; to render ineffectual; to obviate by anticipation.

This much will obviate and preclude the objections.
Bentley.

Preclusion noun [ Latin praeclusio . See Preclude .] The act of precluding, or the state of being precluded; a shutting out.

Preclusive adjective Shutting out; precluding, or tending to preclude; hindering. -- Pre*clu"sive*ly , adverb

Precoce adjective [ French précoce .] Precocious. [ Obsolete]

Precoces noun plural [ New Latin ] (Zoology) Same as Præcoces .

Precocious adjective [ Latin praecox , -ocis , and praecoquus , from praecoquere to cook or ripen beforehand; prae before + coquere to cook. See 3d Cook , and confer Apricot .]
1. Ripe or mature before the proper or natural time; early or prematurely ripe or developed; as, precocious trees. [ R.] Sir T. Browne.

2. Developed more than is natural or usual at a given age; exceeding what is to be expected of one's years; too forward; -- used especially of mental forwardness; as, a precocious child; precocious talents.

Precociously adverb In a precocious manner.

Precociousness, Precocity noun [ Confer French précocité .] The quality or state of being precocious; untimely ripeness; premature development, especially of the mental powers; forwardness.

Saucy precociousness in learning.
Bp. Mannyngham.

That precocity which sometimes distinguishes uncommon genius.
Wirt.

Precoetanean noun One contemporary with, but older than, another. [ Obsolete] Fuller.

Precogitate transitive verb [ Latin praecogitatus , past participle of praecogitare . See Pre- , and Cogitate .] To cogitate beforehand. [ R.] Sherwood.

Precogitation noun [ Latin praecogitatio .] Previous cogitation. [ R.] Bailey.

Precognition noun [ Latin praecognitio , from praecognoscere to foreknow. See Pre- , and Cognition .]
1. Previous cognition. Fotherby.

2. (Scots Law) A preliminary examination of a criminal case with reference to a prosecution. Erskine.

Precognizable adjective Cognizable beforehand.

Precognosce transitive verb [ Latin praecognoscere to foreknow.] (Scots Law) To examine beforehand, as witnesses or evidence.

A committee of nine precognoscing the chances.
Masson.

Precollection noun A collection previously made. [ R.]

Precompose transitive verb [ imperfect & past participle Precomposed ; present participle & verbal noun Precomposing .] To compose beforehand. Johnson.

Preconceit noun An opinion or notion formed beforehand; a preconception. Hooker.

Preconceive transitive verb [ imperfect & past participle Preconceived ; present participle & verbal noun Preconceiving .] To conceive, or form an opinion of, beforehand; to form a previous notion or idea of.

In a dead plain the way seemeth the longer, because the eye hath preconceived it shorter than the truth.
Bacon.

Preconception noun The act of preconceiving; conception or opinion previously formed.

Preconcert transitive verb [ imperfect & past participle Preconcerted ; present participle & verbal noun Preconcerting .] To concert or arrange beforehand; to settle by previous agreement.

Preconcert noun Something concerted or arranged beforehand; a previous agreement.

Preconcerted adjective Previously arranged; agreed upon beforehand. -- Pre`con*cert"ed*ly , adverb -- Pre`con*cert"ed*ness , noun

Preconcertion noun The act of preconcerting; preconcert. Dr. T. Dwight.

Precondemn transitive verb To condemn beforehand. -- Pre*con`dem*na"tion noun

Precondition noun A previous or antecedent condition; a preliminary condition.

Preconform transitive verb & i. To conform by way anticipation. De Quincey.

Preconformity noun Anticipative or antecedent conformity. Coleridge.

Preconizate transitive verb [ Confer French préconiser .] To proclaim; to publish; also, to summon; to call. [ Obsolete] Bp. Burnet.

Preconization noun [ Latin praeconium a crying out in public, from praeco , - onis , a crier, a herald: confer French préconisation .]
1. A publishing by proclamation; a public proclamation. Bp. Hall.

2. (Eccl.) A formal approbation by the pope of a person nominated to an ecclesiastical dignity. Addis & Arnold.

Preconize transitive verb (Eccl.) To approve by preconization.

Preconquer transitive verb To conquer in anticipation. [ R.] Fuller.