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Tooth

tooth

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. (Science: anatomy) 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. (Science: zoology) 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. .

(Science: medicine) 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 . .


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Re: Mysterious Tooth

... was a hole drilled through near the top (which the leather goes through) and it is solid all the way through. Ignoring the obvious curve of the tooth, another slight clue would be that it isn't straight. Looking down, it has a slight turn or bend to it, like it belonged on the left or right ...

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by Sideshow
Thu Aug 28, 2014 3:29 pm
 
Forum: Zoology Discussion
Topic: Mysterious Tooth
Replies: 2
Views: 689

Hypothetical question about vampires

How about there's just multiple tooth development, and this causes the creature of the night to computer file down his tooth himself. They improve them either because they want to avoid the sensors being strong within the tooth, or because ...

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by jiturul
Thu Aug 28, 2014 9:36 am
 
Forum: General Discussion
Topic: Hypothetical question about vampires
Replies: 2
Views: 1072

Hypothetical question about vampires

How about there's just accelerated tooth growth, and this forces the vampire to file down his teeth himself. They sharpen them either because they want to avoid the nerve endings deep within the tooth, or because it's convenient for blood ...

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by wildfunguy
Wed Jul 30, 2014 7:53 pm
 
Forum: General Discussion
Topic: Hypothetical question about vampires
Replies: 2
Views: 1072

Hypothetical question about vampires

... throughout their lifetimes, and teeth can't change their size or shape, unless you somehow expose the odontoblasts that are hidden by dentin and tooth enamel. As such I can only think of one way for a vampire to develop fangs and it seems kind of messy to me: the environment in the mouth would ...

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by eugene2k
Mon Jul 28, 2014 2:30 pm
 
Forum: General Discussion
Topic: Hypothetical question about vampires
Replies: 2
Views: 1072

Mysterious Tooth

To any zoology & biology gurus or anyone else who's interested: I am in possession of a canine tooth which was gifted to me while living in Honduras 16 years ago. I have always wondered what type of animal it came from. See attached images. It is 3-1/4" (82mm) long ...

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by Sideshow
Fri Jun 20, 2014 6:07 pm
 
Forum: Zoology Discussion
Topic: Mysterious Tooth
Replies: 2
Views: 689
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