Definition of Tooth

1. Noun. Hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense.

2. Noun. Something resembling the tooth of an animal.
Specialized synonyms: Cog, Sprocket
Group relationships: Comb, Comb, Power Saw, Saw, Sawing Machine, Saw
Generic synonyms: Projection

3. Noun. Toothlike structure in invertebrates found in the mouth or alimentary canal or on a shell.

4. Noun. A means of enforcement. "The treaty had no teeth in it"
Generic synonyms: Agency, Means, Way

5. Noun. One of a number of uniform projections on a gear.
Group relationships: Cogwheel, Gear, Gear Wheel, Geared Wheel
Generic synonyms: Projection

Definition of Tooth

1. n. One of the hard, bony appendages which are borne on the jaws, or on other bones in the walls of the mouth or pharynx of most vertebrates, and which usually aid in the prehension and mastication of food.

2. v. t. To furnish with teeth.

Definition of Tooth

1. Noun. A hard, calcareous structure present in the mouth of many vertebrate animals, generally used for eating. ¹

2. Noun. A sharp projection on the blade of a saw or similar implement. ¹

3. Noun. A projection on the edge of a gear that meshes with similar projections on adjacent gears, or on the circumference of a cog that engages with a chain. ¹

4. Noun. (botany) A pointed projection from the margin of a leaf. ¹

5. Verb. To provide or furnish with teeth. ¹

6. Verb. To indent; to jag. ¹

7. Verb. To lock into each other, like gear wheels. ¹

¹ Source:

Definition of Tooth

1. one of the hard structures attached in a row to each jaw [n TEETH] / to furnish with toothlike projections [v -ED, -ING, -S]

Medical Definition of Tooth

1. Pl> Teeth . [OE. Toth,tooth, AS. T; akin to OFries. Tth, OS. & D. Tand, OHG. Zang, zan, G. Zahn, Icel. Tnn, Sw. & Dan. Tand, Goth. Tumpus, Lith. Dantis, W. Dant, L. Dens, dentis, Gr, Skr. Danta; probably originally the p. Pr. Of the verb to eat. 239. Cf. Eat, Dandelion, Dent the tooth of a wheel, Dental, Dentist, Indent, Tine of a fork, Tusk. 1. One of the hard, bony appendages which are borne on the jaws, or on other bones in the walls of the mouth or pharynx of most vertebrates, and which usually aid in the prehension and mastication of food. The hard parts of teeth are principally made up of dentine, or ivory, and a very hard substance called enamel. These are variously combined in different animals. Each tooth consist of three parts, a crown, or body, projecting above the gum, one or more fangs imbedded in the jaw, and the neck, or intermediate part. In some animals one or more of the teeth are modified into tusks which project from the mouth, as in both sexes of the elephant and of the walrus, and in the male narwhal. In adult man there are thirty-two teeth, composed largely of dentine, but the crowns are covered with enamel, and the fangs with a layer of bone called cementum. Of the eight teeth on each half of each jaw, the two in front are incisors, then come one canine, cuspid, or dog tooth, two bicuspids, or false molars, and three molars, or grinding teeth. The milk, or temporary, teeth are only twenty in number, there being two incisors, one canine, and two molars on each half of each jaw. The last molars, or wisdom teeth, usually appear long after the others, and occasionally do not appear above the jaw at all. "How sharper than a serpent's tooth it is To have a thankless child !" (Shak) 2. Taste; palate. "These are not dishes for thy dainty tooth." (Dryden) 3. Any projection corresponding to the tooth of an animal, in shape, position, or office; as, the teeth, or cogs, of a cogwheel; a tooth, prong, or tine, of a fork; a tooth, or the teeth, of a rake, a saw, a file, a card. 4. A projecting member resembling a tenon, but fitting into a mortise that is only sunk, not pierced through. One of several steps, or offsets, in a tusk. See Tusk. 5., one of the appendages at the mouth of the capsule of a moss. See Peristome. 6. Any hard calcareous or chitinous organ found in the mouth of various invertebrates and used in feeding or procuring food; as, the teeth of a mollusk or a starfish. In spite of the teeth, in defiance of opposition; in opposition to every effort. In the teeth, directly; in direct opposition; in front. "Nor strive with all the tempest in my teeth." . To cast in the teeth, to report reproachfully; to taunt or insult one with. Tooth and nail, as if by biting and scratching; with one's utmost power; by all possible means. "I shall fight tooth and nail for international copyright." . Tooth coralline See Red-gum. To show the teeth, to threaten. "When the Law shows her teeth, but dares not bite." . To the teeth, in open opposition; directly to one's face. "That I shall live, and tell him to his teeth ." . Source: Websters Dictionary (01 Mar 1998)

Tooth Pictures

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Lexicographical Neighbors of Tooth

toot one's own horn
toot sweet
tooth-and-nail syndrome
tooth-borne base
tooth abrasion
tooth abscess
tooth and nail
tooth apex
tooth arrangement
tooth attrition
tooth avulsion
tooth bleaching
tooth bud

Literary usage of Tooth

Below you will find example usage of this term as found in modern and/or classical literature:

1. A German-English Dictionary for Chemists by Austin McDowell Patterson (1917)
"Zahnpulver, n. tooth powder. Zahnrad, n. cog wheel. Zahnschmelz, m. dental enamel. Zahnschmerz, m. toothache. Zahnstein, n. tartar (on the teeth). ..."

2. Publications by Folklore Society (Great Britain), Parish Register Society (Great Britain) (1900)
"Mrs. MacCaskill had also remarked that had she the tooth she would have put it ... From her answers it appears that the tooth possessed certain curative ..."

3. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, Literature and (1911)
"In the form machines a pattern tooth or form-tooth is prepared in hardened ... The generating machines use no pattern tooth but the principles of the tooth ..."

4. The Encyclopedia Americana: A Library of Universal Knowledge (1920)
"tooth-SHELL. See DENTALIUM. toothACHE, a pain in a tooth or adjacent jaw, arising from various causes. The most common cause is decay of some portion of the ..."

5. Machine Tool Operation by Henry D. Burghardt (1922)
"B the tool has moved in an amount equal 168 The inserted tOOth to C. Then the tool ... B. As the cutter revolves and the point tooth, as the cutter slowly A ..."

6. The ABCs of Safe & Healthy Child Care: A Handbook for Child Care Providers by Cynthia M. Hale, Jacqueline A. Polder (2000)
"Baby Bottle tooth Decay and Oral Health in the Child Care Setting ... Although tooth decay is not as common as it used to be, it is still one of the most ..."

7. The Federal Reporter: With Key-number Annotations by District of Columbia Court of Appeals, United States Commerce Court, Courts of Appeals (1890)
"And again: "It is nut absolutely essential that the under surface of that portion of the clip or plate that presses upon the tooth should be concaved, ..."

8. A Manual for the Practice of Surgery by Thomas Bryant (1881)
"The effect which disease or malposition of a tooth may have on the structures immediately around it, and on the general health, will also be noted. ..."

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