Webster's Dictionary, 1913

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Tangent spoke A tension spoke of a bicycle or similar wheel, secured tangentially to the hub.

Tangent wheel (a) A worm or worm wheel; a tangent screw. (b) A wheel with tangent spokes.

Tangental adjective (Geom.) Tangential.

Tangential adjective (Geom.) Of or pertaining to a tangent; in the direction of a tangent.

Tangential force (Mech.) , a force which acts on a moving body in the direction of a tangent to the path of the body, its effect being to increase or diminish the velocity; -- distinguished from a normal force , which acts at right angles to the tangent and changes the direction of the motion without changing the velocity. -- Tangential stress . (Engineering) See Shear , noun , 3.

Tangentially adverb In the direction of a tangent.

Tangerine noun [ Etymol. uncertain.] (Botany) A kind of orange, much like the mandarin, but of deeper color and higher flavor. It is said to have been produced in America from the mandarin. [ Written also tangierine .]

Tangfish noun (Zoology) The common harbor seal. [ Prov. Eng.]

Tanghinia noun [ New Latin ] (Botany) The ordeal tree. See under Ordeal .

Tangibility noun [ Confer French tanggibilité .] The quality or state of being tangible.

Tangible adjective [ Latin tangibilis , from tangere to touch: confer French tangible . See Tangent .]
1. Perceptible to the touch; tactile; palpable. Bacon.

2. Capable of being possessed or realized; readily apprehensible by the mind; real; substantial; evident. "A tangible blunder." Byron.

Direct and tangible benefit to ourselves and others.
Southey.

-- Tan"gi*ble*ness , noun -- Tan"gi*bly , adverb

Tangle transitive verb [ imperfect & past participle Tangled ; present participle & verbal noun Tangling .] [ A frequentative from tang seaweed; hence, to twist like seaweed. See Tang seaweed, and confer Tangle , noun ]
1. To unite or knit together confusedly; to interweave or interlock, as threads, so as to make it difficult to unravel the knot; to entangle; to ravel.

2. To involve; to insnare; to entrap; as, to be tangled in lies. " Tangled in amorous nets." Milton.

When my simple weakness strays,
Tangled in forbidden ways.
Crashaw.

Tangle intransitive verb To be entangled or united confusedly; to get in a tangle.

Tangle noun
1. [ Confer Icelandic þöngull . See Tang seaweed.] (Botany) Any large blackish seaweed, especially the Laminaria saccharina . See Kelp .

Coral and sea fan and tangle , the blooms and the palms of the ocean.
C. Kingsley.

2. [ From Tangle , v. ] A knot of threads, or other thing, united confusedly, or so interwoven as not to be easily disengaged; a snarl; as, hair or yarn in tangles ; a tangle of vines and briers. Used also figuratively.

3. plural An instrument consisting essentially of an iron bar to which are attached swabs, or bundles of frayed rope, or other similar substances, -- used to capture starfishes, sea urchins, and other similar creatures living at the bottom of the sea.

Blue tangle . (Botany) S ee Dangleberry . -- Tangle picker (Zoology) , the turnstone. [ Prov. Eng.]

Tanglefish noun (Zoology) The sea adder, or great pipefish of Europe.

Tanglingly adverb In a tangling manner.

Tangly adjective
1. Entangled; intricate.

2. Covered with tangle, or seaweed.

Prone, helpless, on the tangly beach he lay.
Falconer.

Tango noun ; plural Tangos . [ Spanish , a certain dance.] (a) A difficult dance in two-four time characterized by graceful posturing, frequent pointing positions, and a great variety of steps, including the cross step and turning steps. The dance is of Spanish origin, and is believed to have been in its original form a part of the fandango. (b) Any of various popular forms derived from this.

Tangram noun [ Confer Trangram .] A Chinese toy made by cutting a square of thin wood, or other suitable material, into seven pieces, as shown in the cut, these pieces being capable of combination in various ways, so as to form a great number of different figures. It is now often used in primary schools as a means of instruction.

Tangue noun (Zoology) The tenrec.

Tangun noun (Zoology) A piebald variety of the horse, native of Thibet.

Tangwhaup noun (Zoology) The whimbrel. [ Prov. Eng.]

Tanier noun (Botany) An aroid plant ( Caladium sagittæfolium ), the leaves of which are boiled and eaten in the West Indies. [ Written also tannier .]

Tanist noun [ Ir. tanaiste , tanaise , second, the second person in rank, the presumptive or apparent heir to a prince.] In Ireland, a lord or proprietor of a tract of land or of a castle, elected by a family, under the system of tanistry.

This family [ the O'Hanlons] were tanists of a large territory within the present county of Armagh.
M. A. Lower.

Tanistry noun [ See Tanist .] In Ireland, a tenure of family lands by which the proprietor had only a life estate, to which he was admitted by election.

» The primitive intention seems to have been that the inheritance should descend to the oldest or most worthy of the blood and name of the deceased. This was, in reality, giving it to the strongest; and the practice often occasioned bloody feuds in families, for which reason it was abolished under James I.

Tanite noun A firm composition of emery and a certain kind of cement, used for making grinding wheels, slabs, etc.

Tank noun A small Indian dry measure, averaging 240 grains in weight; also, a Bombay weight of 72 grains, for pearls. Simmonds.

Tank noun [ Portuguese tanque , Latin stangum a pool; or perhaps of East Indian origin. Confer Stank , noun ] A large basin or cistern; an artificial receptacle for liquids.

Tank engine , a locomotive which carries the water and fuel it requires, thus dispensing with a tender. -- Tank iron , plate iron thinner than boiler plate, and thicker than sheet iron or stovepipe iron. -- Tank worm (Zoology) , a small nematoid worm found in the water tanks of India, supposed by some to be the young of the Guinea worm.

Tank noun A pond, pool, or small lake, natural or artificial.

We stood in the afterglow on the bank of the tank and saw the ducks come homa.
F. Remington.

The tanks are full and the grass is high.
Lawson.

Tank ship, Tank vessel (Nautical) A vessel fitted with tanks for the carrying of oil or other liquid in bulk.

Tanka noun (Nautical) A kind of boat used in Canton. It is about 25 feet long and is often rowed by women. Called also tankia . S. W. Williams.

Tankage noun
1. The act or process of putting or storing in tanks.

2. Fees charged for storage in tanks.

3. The capacity or contents of a tank or tanks.

4. (Agriculture) Waste matter from tanks; esp., the dried nitrogenous residue from tanks in which fat has been rendered, used as a fertilizer.

Tankard noun [ Old French tanquart ; confer OD. tanckaert ; of uncertain origin.] A large drinking vessel, especially one with a cover.

Marius was the first who drank out of a silver tankard , after the manner of Bacchus.
Arbuthnot.

Tankia noun (Nautical) See Tanka .

Tankling noun A tinkling. [ Obsolete]

Tanling noun One tanned by the sun. [ R.]

Hot summer's tanlings and
The shrinking slaves of winter.
Shak.

Tannable adjective That may be tanned.

Tannage noun A tanning; the act, operation, or result of tanning. [ R.]

They should have got his cheek fresh tannage .
R. Browning.

Tannate noun [ Confer French tannate .] (Chemistry) A salt of tannic acid.

Tanner noun One whose occupation is to tan hides, or convert them into leather by the use of tan.

Tanner noun [ Etym. uncertain.] A sixpence. [ Slang, Eng.]

Tannery noun ; plural Tanneries . [ Confer French tannerie .]
1. A place where the work of tanning is carried on.

2. The art or process of tanning. [ R.] Carlyle.

Tannic adjective Of or pertaining to tan; derived from, or resembling, tan; as, tannic acid.

Tannic acid . (Chemistry) (a) An acid obtained from nutgalls as a yellow amorphous substance, C 14 H 10 O 9 , having an astringent taste, and forming with ferric salts a bluish-black compound, which is the basis of common ink. Called also tannin , and gallotannic acid . (b) By extension, any one of a series of astringent substances resembling tannin proper, widely diffused through the vegetable kingdom, as in oak bark, willow, catechu, tea, coffee, etc.

Tannier noun (Botany) See Tanier .

Tannigen noun [ Tann in + -gen .] (Pharm.) A compound obtained as a yellowish gray powder by the action of acetyl chloride or acetic anhydride or ordinary tannic acid. It is used as an intestinal astringent, and locally in rhinitis and pharyngitis.

Tannin noun [ Confer French tannin .] (Chemistry) Same as Tannic acid , under Tannic .

Tanning noun The art or process of converting skins into leather. See Tan , transitive verb , 1.

Tanrec noun (Zoology) Same as Tenrec .

Tansy noun [ Middle English tansaye , French tanaise ; confer Italian & Spanish tanaceto , New Latin tanacetum , Portuguese atanasia , athanasia , Greek 'aqanasi`a immortality, from 'aqa`natos immortal; 'a priv. + qa`natos death.]
1. (Botany) Any plant of the composite genus Tanacetum . The common tansy ( T. vulgare ) has finely divided leaves, a strong aromatic odor, and a very bitter taste. It is used for medicinal and culinary purposes.

2. A dish common in the seventeenth century, made of eggs, sugar, rose water, cream, and the juice of herbs, baked with butter in a shallow dish. [ Obsolete] Pepys.

Double tansy (Botany) , a variety of the common tansy with the leaves more dissected than usual. -- Tansy mustard (Botany) , a plant ( Sisymbrium canescens ) of the Mustard family, with tansylike leaves.

Tant noun [ Confer Taint tincture.] (Zoology) A small scarlet arachnid.

Tantalate noun (Chemistry) A salt of tantalic acid.