[tooth] 
,noun, plural teeth, verb, toothed [tootht, tooth
d] , tooth⋅ing [too-thing, -thing] .| 1. | (in most vertebrates) one of the hard bodies or processes usually attached in a row to each jaw, serving for the prehension and mastication of food, as weapons of attack or defense, etc., and in mammals typically composed chiefly of dentin surrounding a sensitive pulp and covered on the crown with enamel. |
| 2. | (in invertebrates) any of various similar or analogous processes occurring in the mouth or alimentary canal, or on a shell. |
| 3. | any projection resembling or suggesting a tooth. |
| 4. | one of the projections of a comb, rake, saw, etc. |
| 5. | Machinery.
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| 6. | Botany.
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| 7. | a sharp, distressing, or destructive attribute or agency. |
| 8. | taste, relish, or liking. |
| 9. | a surface, as on a grinding wheel or sharpening stone, slightly roughened so as to increase friction with another part. |
| 10. | a rough surface created on a paper made for charcoal drawing, watercolor, or the like, or on canvas for oil painting. |
| 11. | to furnish with teeth. |
| 12. | to cut teeth upon. |
| 13. | to interlock, as cogwheels. |
| 14. | by the skin of one's teeth, barely: He got away by the skin of his teeth. |
| 15. | cast or throw in someone's teeth, to reproach someone for (an action): History will ever throw this blunder in his teeth. |
| 16. | cut one's teeth on, to do at the beginning of one's education, career, etc., or in one's youth: The hunter boasted of having cut his teeth on tigers. |
| 17. | in the teeth of,
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| 18. | long in the tooth, old; elderly. |
| 19. | put teeth in or into, to establish or increase the effectiveness of: to put teeth into the law. |
| 20. | set one's teeth, to become resolute; prepare for difficulty: He set his teeth and separated the combatants. |
| 21. | set or put one's teeth on edge,
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| 22. | show one's teeth, to become hostile or threatening; exhibit anger: Usually friendly, she suddenly began to show her teeth. |
| 23. | to the teeth, entirely; fully: armed to the teeth; dressed to the teeth in furs. |
n), Skt dántatooth (tōōth)  (click for larger image in new window) n. pl. teeth (tēth)
v. tr.
To become interlocked; mesh. [Middle English, from Old English tōth; see dent- in Indo-European roots.] Word History: Eating, biting, teeth, and dentists are related not only logically but etymologically; that is, the roots of the words eat, tooth, and dentist have a common origin. The Proto-Indo-European root *ed-, meaning "to eat" and the source of our word eat, originally meant "to bite." A participial form of *ed- in this sense was *dent-, "biting," which came to mean "tooth." Our word tooth comes from *dont-, a form of *dent-, with sound changes that resulted in the Germanic word *tanthuz. This word became Old English tōth and Modern English tooth. Meanwhile the Proto-Indo-European form *dent- itself became in Latin dēns (stem dent-), "tooth," from which is derived our word dentist. We find a descendant of another Proto-Indo-European form *(o)dont- in the word orthodontist. |
A hard structure, embedded in the jaws of the mouth, that functions in chewing. The tooth consists of a crown, covered with hard white enamel; a root, which anchors the tooth to the jawbone; and a “neck” between the crown and the root, covered by the gum. Most of the tooth is made up of dentin, which is located directly below the enamel. The soft interior of the tooth, the pulp, contains nerves and blood vessels. Humans have molars for grinding food, incisors for cutting, and canines and bicuspids for tearing.
tooth (t&oomacr;th)
n. pl. teeth (tēth)
One of a set of hard, bonelike structures rooted in sockets in the jaws of vertebrates, typically composed of a core of soft pulp surrounded by a layer of hard dentin that is coated with cement or enamel at the crown and used chiefly for biting or chewing food or as a means of attack or defense.
Tooth
one of the particulars regarding which retaliatory punishment was to be inflicted (Ex. 21:24; Lev. 24:20; Deut. 19:21). "Gnashing of teeth" =rage, despair (Matt. 8:12; Acts 7:54); "cleanness of teeth" =famine (Amos 4:6); "children's teeth set on edge" =children suffering for the sins of their fathers (Ezek. 18:2).
tooth
In addition to the idiom beginning with tooth, also see fight tooth and nail; fine-tooth comb; long in the tooth; sweet tooth. Also see under teeth.