Webster's Dictionary, 1913

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Collimate transitive verb [ imperfect & past participle Collimated ; past participle & verbal noun Collimating .] [ See Collimation .] (Physics & Astron.) To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc.; to render parallel, as rays of light.

Collimating eyepiece , an eyepiece with a diagonal reflector for illumination, used to determine the error of collimation in a transit instrument by observing the image of a cross wire reflected from mercury, and comparing its position in the field with that of the same wire seen directly. -- Collimating lens (Optics) , a lens used for producing parallel rays of light.

Collimation noun [ Confer French collimation , from a false reading ( collimare ) for Latin collineare to direct in a straight line; col- + linea line. Confer Collineation .] The act of collimating; the adjustment of the line of the sights, as the axial line of the telescope of an instrument, into its proper position relative to the other parts of the instrument.

Error of collimation , the deviation of the line collimation of an astronomical instrument from the position it ought to have with respect to the axis of motion of the instrument. -- Line of collimation , the axial line of the telescope of an astronomical or geodetic instrument, or the line which passes through the optical center of the object glass and the intersection of the cross wires at its focus.

Collimator noun
1. (Astron.) A telescope arranged and used to determine errors of collimation, both vertical and horizontal. Nichol.

2. (Optics) A tube having a convex lens at one end and at the other a small opening or slit which is at the principal focus of the lens, used for producing a beam of parallel rays; also, a lens so used.

Collin noun [ Greek ko`lla glue.] A very pure form of gelatin.

Colline noun [ French colline , from Latin collis a hill.] A small hill or mount. [ Obsolete]

And watered park, full of fine collines and ponds.

Collineation noun [ Latin collineare to direct in a straight line. See Collimation .] The act of aiming at, or directing in a line with, a fixed object. [ R.] Johnson.

Colling noun [ From Coll , transitive verb ] An embrace; dalliance. [ Obsolete] Halliwell.

Collingly adverb With embraces. [ Obsolete] Gascoigne.

Collingual adjective Having, or pertaining to, the same language.

Colliquable adjective Liable to melt, grow soft, or become fluid. [ Obsolete] Harvey.

Colliquament noun The first rudiments of an embryo in generation. Dr. H. More.

Colliquate transitive verb & i. [ imperfect & past participle Colliquated ; present participle & verbal noun Colliquating .] [ Prefix col- + Latin liquare , liquatum , to melt.] To change from solid to fluid; to make or become liquid; to melt. [ Obsolete]

The ore of it is colliquated by the violence of the fire.

[ Ice] will colliquate in water or warm oil.
Sir T. Browne.

Colliquation noun
1. A melting together; the act of melting; fusion.

When sand and ashes are well melted together and suffered to cool, there is generated, by the colliquation , that sort of concretion we call "glass".

2. (Medicine) A processive wasting or melting away of the solid parts of the animal system with copious excretions of liquids by one or more passages. [ Obsolete]

Colliquative adjective Causing rapid waste or exhaustion; melting; as, colliquative sweats.

Colliquefaction noun [ Latin colliquefactus melted; col- + liquefacere ; liquēre to be liquid + facere to make.] A melting together; the reduction of different bodies into one mass by fusion.

The incorporation of metals by simple colliquefaction .

Collish noun (Shoemaking) A tool to polish the edge of a sole. Knight.

Collision noun [ Latin collisio , from collidere . See Collide .]
1. The act of striking together; a striking together, as of two hard bodies; a violent meeting, as of railroad trains; a clashing.

2. A state of opposition; antagonism; interference.

The collision of contrary false principles.
Bp. Warburton.

Sensitive to the most trifling collisions .
W. Irving.

Syn. -- Conflict; clashing; encounter; opposition.

Collisive adjective Colliding; clashing. [ Obsolete]

Collitigant adjective Disputing or wrangling. [ Obsolete] -- noun One who litigates or wrangles. [ Obsolete]

Collocate adjective [ Latin collocatus , past participle of collocare . See Couch .] Set; placed. [ Obsolete] Bacon.

Collocate transitive verb [ imperfect & past participle Collocated ; present participle & verbal noun Collocating .] To set or place; to set; to station.

To marshal and collocate in order his battalions.
E. Hall.

Collocation noun [ Latin collocatio .] The act of placing; the state of being placed with something else; disposition in place; arrangement.

The choice and collocation of words.
Sir W. Jones.

Collocution noun [ Latin collocutio , from colloqui , -locutum , to converse; col- + loqui to speak. See Loquacious .] A speaking or conversing together; conference; mutual discourse. Bailey.

Collocutor noun [ Latin collocutor ] One of the speakers in a dialogue. Derham.

Collodion noun [ Greek ... like glue; ko`lla glue + ... form. Confer Colloid .] (Chemistry) A solution of pyroxylin (soluble gun cotton) in ether containing a varying proportion of alcohol. It is strongly adhesive, and is used by surgeons as a coating for wounds; but its chief application is as a vehicle for the sensitive film in photography.

Collodion process (Photog.) , a process in which a film of sensitized collodion is used in preparing the plate for taking a picture. -- Styptic collodion , collodion containing an astringent, as tannin.

Collodionize transitive verb To prepare or treat with collodion. R. Hunt.

Collodiotype noun A picture obtained by the collodion process; a melanotype or ambrotype.

Collodium noun See Collodion .

Collogue intransitive verb [ Confer Latin colloqui and English dialogue . Confer Collocution .] To talk or confer secretly and confidentially; to converse, especially with evil intentions; to plot mischief. [ Archaic or Colloq.]

Pray go in; and, sister, salve the matter,
Collogue with her again, and all shall be well.

He had been colloguing with my wife.

Colloid adjective [ Greek ko`lla glue + -oid . Confer Collodion .] Resembling glue or jelly; characterized by a jellylike appearance; gelatinous; as, colloid tumors.

Colloid noun
1. (Physiol. Chem.) A substance (as albumin, gum, gelatin, etc.) which is of a gelatinous rather than a crystalline nature, and which diffuses itself through animal membranes or vegetable parchment more slowly than crystalloids do; -- opposed to crystalloid .

2. (Medicine) A gelatinous substance found in colloid degeneration and colloid cancer.

Styptic colloid (Medicine) , a preparation of astringent and antiseptic substances with some colloid material, as collodion, for ready use.

Colloidal adjective Pertaining to, or of the nature of, colloids.

Colloidality noun The state or quality of being colloidal.

Collop noun [ Of uncertain origin; confer Old French colp blow, stroke, piece, French coup , from Latin colophus buffet, cuff, Greek ...] [ Written also colp .]
1. A small slice of meat; a piece of flesh.

God knows thou art a collop of my flesh.

Sweetbread and collops were with skewers pricked.

2. A part or piece of anything; a portion.

Cut two good collops out of the crown land.

Colloped adjective Having ridges or bunches of flesh, like collops.

With that red, gaunt, and colloped neck astrain.
R. Browning.

Collophore noun [ Greek ko`lla glue + ... to bear.] (Zoology) (a) A suckerlike organ at the base of the abdomen of insects belonging to the Collembola. (b) An adhesive marginal organ of the Lucernariae.

Colloquial adjective [ See Colloqui .] Pertaining to, or used in, conversation, esp. common and familiar conversation; conversational; hence, unstudied; informal; as, colloquial intercourse; colloquial phrases; a colloquial style. -- Col*lo"qui*al*ly , adverb

His [ Johnson's] colloquial talents were, indeed, of the highest order.

Colloquialism noun A colloquial expression, not employed in formal discourse or writing.

Colloquialize transitive verb To make colloquial and familiar; as, to colloquialize one's style of writing.

Colloquist noun A speaker in a colloquy or dialogue. Malone.

Colloquy noun ; plural Colloquies . [ Latin colloquium . See Collocution .]
1. Mutual discourse of two or more persons; conference; conversation.

They went to Worms, to the colloquy there about religion.
A. Wood.

2. In some American colleges, a part in exhibitions, assigned for a certain scholarship rank; a designation of rank in collegiate scholarship.

Collotype noun [ Greek ... glue + - type .] A photomechanical print made directly from a hardened film of gelatin or other colloid; also, the process of making such prints. According to one method, the film is sensitized with potassium dichromate and exposed to light under a reversed negative. After the dichromate has been washed out, the film is soaked in glycerin and water. As this treatment causes swelling in those parts of the film which have been acted on by light, a plate results from which impressions can be taken with prepared ink. The albertype, phototype, and heliotype are collotypes.

Collow noun Soot; smut. See 1st Colly . [ Obsolete]

Colluctancy noun [ Latin colluctari to struggle with.] A struggling to resist; a striving against; resistance; opposition of nature. [ Obsolete]

Colluctation noun [ Latin colluctatio , from colluctari to struggle with; col- + luctari to struggle.] A struggling; a contention. [ Obsolete]

Colluctation with old hags and hobgoblins.
Dr. H. More.

Collude intransitive verb [ imperfect & past participle Colluded ; present participle & verbal noun Colluding .] [ Latin colludere , - lusum ; col- + ludere to play. See Ludicrous .] To have secretly a joint part or share in an action; to play into each other's hands; to conspire; to act in concert.

If they let things take their course, they will be represented as colluding with sedition.

Colluder noun One who conspires in a fraud.

Collum noun ; plural Colla . [ Latin , neck.]

1. (Anat.) A neck or cervix. Dunglison.

2. (Botany) Same as Collar . Gray.

Collusion noun [ Latin collusio : confer French collusion . See Collude .]
1. A secret agreement and cooperation for a fraudulent or deceitful purpose; a playing into each other's hands; deceit; fraud; cunning.

The foxe, maister of collusion .

That they [ miracles] be done publicly, in the face of the world, that there may be no room to suspect artifice and collusion .

By the ignorance of the merchants or dishonesty of the weavers, or the collusion of both, the ware was bad and the price excessive.

2. (Law) An agreement between two or more persons to defraud a person of his rights, by the forms of law, or to obtain an object forbidden by law. Bouvier. Abbott.

Syn. -- Collusion , Connivance . A person who is guilty of connivance intentionally overlooks, and thus sanctions what he was bound to prevent. A person who is guilty of collusion unites with others (playing into their hands) for fraudulent purposes.

Collusive adjective
1. Characterized by collusion; done or planned in collusion. " Collusive and sophistical arguings." J. Trapp. " Collusive divorces." Strype.

2. Acting in collusion. " Collusive parties ." Burke.

-- Col*lu"sive*ly , adverb -- Col*lu"sive*ness , noun