Webster's Dictionary, 1913

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Decurrent adjective [ Latin decurrens , -entis , present participle of decurrere to run down; de- + currere to run: confer French décurrent .] (Botany) Extending downward; -- said of a leaf whose base extends downward and forms a wing along the stem. -- De*cur"rent*ly , adverb

Decursion noun [ Latin decursio , from decurrere . See Decurrent .] A flowing; also, a hostile incursion. [ Obsolete] Sir M. Hale.

Decursive adjective [ Confer French décursif . See Decurrent .] Running down; decurrent.

Decursively adverb In a decursive manner.

Decursively pinnate (Botany) , having the leaflets decurrent, or running along the petiole; -- said of a leaf.

Decurt transitive verb [ Latin decurtare ; de- + curtare .] To cut short; to curtail. [ Obsolete] Bale.

Decurtation noun [ Latin decurtatio .] Act of cutting short. [ Obsolete]

Decury noun ; plural Decuries . [ Latin decuria , from decem ten.] A set or squad of ten men under a decurion. Sir W. Raleigh.

Decussate transitive verb [ imperfect & past participle Decussated ; present participle & verbal noun Decussating .] [ Latin decussatus , past participle of decussare to cross like an X, from decussis (orig. equiv. to decem asses ) the number ten, which the Romans represented by X.] To cross at an acute angle; to cut or divide in the form of X; to intersect; -- said of lines in geometrical figures, rays of light, nerves, etc.

Decussate, Decussated adjective
1. Crossed; intersected.

2. (Botany) Growing in pairs, each of which is at right angles to the next pair above or below; as, decussated leaves or branches.

3. (Rhet.) Consisting of two rising and two falling clauses, placed in alternate opposition to each other; as, a decussated period.

Decussately adverb In a decussate manner.

Decussation noun [ Latin decussatio .] Act of crossing at an acute angle, or state of being thus crossed; an intersection in the form of an X; as, the decussation of lines, nerves, etc.

Decussative adjective Intersecting at acute angles. Sir T. Browne.

Decussatively adverb Crosswise; in the form of an X. "Anointed decussatively ." Sir T. Browne.

Decyl noun [ Latin decem ten + -yl .] (Chemistry) A hydrocarbon radical, C 10 H 21 , never existing alone, but regarded as the characteristic constituent of a number of compounds of the paraffin series.

Decylic adjective (Chemistry) Allied to, or containing, the radical decyl.

Dedalian adjective See Dædalian .

Dedalous adjective See Dædalous .

Dedans noun [ French] (Court Tennis) A division, at one end of a tennis court, for spectators.

Dede adjective Dead. [ Obsolete] Chaucer.

Dedecorate transitive verb [ Latin dedecoratus , past participle of dedecorare to disgrace. See Decorate .] To bring to shame; to disgrace. [ Obsolete] Bailey.

Dedecoration noun [ Latin dedecoratio .] Disgrace; dishonor. [ Obsolete] Bailey.

Dedecorous adjective [ Latin dedecorus . See Decorous .] Disgraceful; unbecoming. [ R.] Bailey.

Dedentition noun The shedding of teeth. [ R.] Sir T. Browne.

Dedicate p. adjective [ Latin dedicatus , past participle of dedicare to affirm, to dedicate; de- + dicare to declare, dedicate; akin to dicere to say. See Diction .] Dedicated; set apart; devoted; consecrated. " Dedicate to nothing temporal." Shak.

Syn. -- Devoted; consecrated; addicted.

Dedicate transitive verb [ imperfect & past participle Dedicated ; present participle & verbal noun Dedicating .]
1. To set apart and consecrate, as to a divinity, or for sacred uses; to devote formally and solemnly; as, to dedicate vessels, treasures, a temple, or a church, to a religious use.

Vessels of silver, and vessels of gold, . . . which also king David did dedicate unto the Lord.
2 Sam. viii. 10, 11.

We have come to dedicate a portion of that field as a final resting place for those who here gave their lives that that nation might live. . . . But in a larger sense we can not dedicate , we can not consecrate, we can not hallow this ground.
A. Lincoln.

2. To devote, set apart, or give up, as one's self, to a duty or service.

The profession of a soldier, to which he had dedicated himself.
Clarendon.

3. To inscribe or address, as to a patron.

He complied ten elegant books, and dedicated them to the Lord Burghley.
Peacham.

Syn. -- See Addict .

Dedicatee noun One to whom a thing is dedicated; -- correlative to dedicator .

Dedication noun [ Latin dedicatio .]
1. The act of setting apart or consecrating to a divine Being, or to a sacred use, often with religious solemnities; solemn appropriation; as, the dedication of Solomon's temple.

2. A devoting or setting aside for any particular purpose; as, a dedication of lands to public use.

3. An address to a patron or friend, prefixed to a book, testifying respect, and often recommending the work to his special protection and favor.

Dedicator noun [ Latin : confer French dédicateur .] One who dedicates; more especially, one who inscribes a book to the favor of a patron, or to one whom he desires to compliment.

Dedicatorial adjective Dedicatory.

Dedicatory adjective [ Confer French dédicatoire .] Constituting or serving as a dedication; complimental. "An epistle dedicatory ." Dryden.

Dedicatory noun Dedication. [ R.] Milton.

Dedimus noun [ Latin dedimus we have given, from dare to give. So called because the writ began, Dedimus potestatem , etc.] (Law) A writ to commission private persons to do some act in place of a judge, as to examine a witness, etc. Bouvier.

Dedition noun [ Latin deditio , from dedere to give away, surrender; de- + dare to give.] The act of yielding; surrender. [ R.] Sir M. Hale.

Dedolent adjective [ Latin dedolens , present participle of dedolere to give over grieving; de- + dolere to grieve.] Feeling no compunction; apathetic. [ R.] Hallywell.

Deduce transitive verb [ imperfect & past participle Deduced ; present participle & verbal noun Deducing .] [ Latin deducere ; de- + ducere to lead, draw. See Duke , and confer Deduct .]
1. To lead forth. [ A Latinism]

He should hither deduce a colony.
Selden.

2. To take away; to deduct; to subtract; as, to deduce a part from the whole. [ Obsolete] B. Jonson.

3. To derive or draw; to derive by logical process; to obtain or arrive at as the result of reasoning; to gather, as a truth or opinion, from what precedes or from premises; to infer; -- with from or out of .

O goddess, say, shall I deduce my rhymes
From the dire nation in its early times?
Pope.

Reasoning is nothing but the faculty of deducing unknown truths from principles already known.
Locke.

See what regard will be paid to the pedigree which deduces your descent from kings and conquerors.
Sir W. Scott.

Deducement noun Inference; deduction; thing deduced. [ R.] Dryden.

Deducibility noun Deducibleness.

Deducible adjective
1. Capable of being deduced or inferred; derivable by reasoning, as a result or consequence.

All properties of a triangle depend on, and are deducible from, the complex idea of three lines including a space.
Locke.

2. Capable of being brought down. [ Obsolete]

As if God [ were] deducible to human imbecility.
State Trials (1649).

Deducibleness noun The quality of being deducible; deducibility.

Deducibly adverb By deduction.

Deducive adjective That deduces; inferential.

Deduct transitive verb [ imperfect & past participle Deducted ; present participle & verbal noun Deducting .] [ Latin deductus , past participle of deducere to deduct. See Deduce .]
1. To lead forth or out. [ Obsolete]

A people deducted out of the city of Philippos.
Udall.

2. To take away, separate, or remove, in numbering, estimating, or calculating; to subtract; -- often with from or out of .

Deduct what is but vanity, or dress.
Pope.

Two and a half per cent should be deducted out of the pay of the foreign troops.
Bp. Burnet.

We deduct from the computation of our years that part of our time which is spent in . . . infancy.
Norris.

3. To reduce; to diminish. [ Obsolete] "Do not deduct it to days." Massinger.

Deductible adjective
1. Capable of being deducted, taken away, or withdrawn.

Not one found honestly deductible
From any use that pleased him.
Mrs. Browning.

2. Deducible; consequential.

Deduction noun [ Latin deductio : confer French déduction .]
1. Act or process of deducing or inferring.

The deduction of one language from another.
Johnson.

This process, by which from two statements we deduce a third, is called deduction .
J. R. Seely.

2. Act of deducting or taking away; subtraction; as, the deduction of the subtrahend from the minuend.

3. That which is deduced or drawn from premises by a process of reasoning; an inference; a conclusion.

Make fair deductions ; see to what they mount.
Pope.

4. That which is deducted; the part taken away; abatement; as, a deduction from the yearly rent.

Syn. -- See Induction .

Deductive adjective [ Confer Latin deductivus derivative.] Of or pertaining to deduction; capable of being deduced from premises; deducible.

All knowledge of causes is deductive .
Glanvill.

Notions and ideas . . . used in a deductive process.
Whewell.

Deductively adverb By deduction; by way of inference; by consequence. Sir T. Browne.

Deductor noun [ Latin , a guide. See Deduce .] (Zoology) The pilot whale or blackfish.

Deduit noun [ French déduit . Confer Deduct .] Delight; pleasure. [ Obsolete] Chaucer.

Deduplication noun [ Prefix de- + duplication .] (Biol.) The division of that which is morphologically one organ into two or more, as the division of an organ of a plant into a pair or cluster.