Word Finder - tooth

definition

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

definition

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

definition

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.

definition

A projection or point in other parts of the body resembling the tooth of a vertebrate animal.

definition

A pointed projection from the margin of a leaf.

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The rough surface of some kinds of cel or other films that allows better adhesion of artwork.

definition

Liking, fondness (compare toothsome).

example

I have a sweet tooth: I love sugary treats.

synonyms

• appetite
• fondness
• palate
• taste

definition

An irreducible component of a comb that intersects the handle in exactly one point, that point being distinct from the unique point of intersection for any other tooth of the comb.

definition

To provide or furnish with teeth.

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To indent; to jag.

example

to tooth a saw

definition

To lock into each other, like gear wheels.

Being outdoors all day has worked up a sweet tooth for me.

Avulsions. These occur when an entire structure or part of it is forcibly pulled away, such as the loss of a permanent tooth or an ear lobe.

The absence of a gap between the lower canine and first premolar and between the latter and the following tooth is regarded as an essentially tapir-like feature.

Finally, we have the family Rhinocerotidae, which includes the existing representatives of the group. In this family the dentition has undergone considerable reduction, and may be represented inclusive of all the variations, by the formula i a or a m a The first upper incisor, whenpresent, has an 430r2; PP antero-posteriorly elongated crown, but the second is small; when fully developed, the lower canine is a large forwardly directed tusk-like tooth with sharp cutting-edges, and biting against the first upper incisor.

With changes of the pressures of the blood in arteries, veins or capillaries, and in the heart itself and its respective chambers, static changes are apt to follow in these parts; such as degeneration of the coats of the arteries, due either to the silent tooth of time, to persistent high blood pressures, or to the action of poisons such as lead or syphilis.

In 1889 a medal was struck to commemorate the Tooth anniversary of the mayoralty which according to popular tradition was founded in 1189.

In geared hoists the drums. are on a separate shaft, driven from the crank-shaft by tooth or friction gearing, and make one revolution for, say, 4 or 5 double strokes.

Independent drums, on the contrary, are loose upon their shaft, and are thrown on or off by tooth or friction clutches.

The whole apparatus is so exactly analogous in structure to the poison-gland and tooth of a venomous snake as to suggest a similar function, and there is now evidence that it employs this organ as an offensive weapon.

Besides these variations in the number of ridges or plates of which each tooth is composed, the thickness of the enamel varies so much as to have given rise to a distinction between a " thick-plated " and a " thin-plated " variety - the latter being most prevalent among specimens from the Arctic regions.

Under the Florida treaty of 1819-21 a portion of the Red river was to be the northern boundary of Texas east of the tooth meridian, but as there are two branches of%the river meeting east of the meridian the enclosed territory (Greer county) was in dispute.

It has also one premolar tooth less in the lower jaw.

On the completion of each revolution of this toothed wheel (which, if the number of its teeth be 100, will comprise loo revolutions of the movable plate), a projecting pin fixed to it catches a tooth of another toothed wheel and turns it round, and with it a corresponding index which thus records the number of turns of the first toothed wheel.

For this purpose a resistance, say, of one ohm is placed in series with the lamp and a resistance of 100,000 ohms placed across the terminals of the lamp; the latter resistance is divided into two parts, one consisting of loon ohms and the other of 99,000 ohms. The potentiometer enables us to measure therefore the current through the lamp by measuring the drop in volts down a resistance in series with it and the potential difference of the terminals of the lamp by measuring the drop in volts down the tooth part of the high resistance of 100,000 ohms connected across the terminals of the lamp.

In some all the teeth are nearly of the same size; others possess in front of the jaws (Lycodonts) or behind in the maxillaries (Diacrasterians) a tooth more or less con spicuously larger than the rest; whilst others again are distinguished by this larger posterior tooth being grooved along its outer face.

The snakes with this grooved kind of tooth have been named Opisthoglyphi, and also Suspecti, because their saliva is more or less poisonous.

After the removal or loss of a tooth, braces or another orthodontic appliance may be used to prevent the remaining teeth from moving into the empty space.

The pressure causes bone in the jaw to dissolve in front of the moving tooth as new bone grows behind the tooth.

Removable appliances are often plastic plates that fit into the roof of the mouth and clip onto a tooth.

Removable bionators hold the lower jaw forward and guide tooth eruption while helping the upper and lower jaws to grow proportionately.

Orthodontic appliances trap food, bacteria, and plaque, leading to tooth decay.

Food particles and plaque deposits around orthodontic appliances can cause demineralization of the tooth enamel, leading to cavities and permanent whitish scars on the teeth.

Crown-The natural part of the tooth covered by enamel.

A restorative crown is a protective shell that fits over a tooth.

Plaque-A sticky film of saliva, food particles, and bacteria that attaches to the tooth surface and causes decay.

Dental x rays are designed to locate decay within the tooth.

Children should avoid trauma, such as biting the inside of their mouth and tongue, or vigorous tooth brushing.

Left untreated, periodontal disease results in the destruction of the gums, alveolar bone (the part of the jaws where the teeth arise), and the outer layer of the tooth root.

Thence westward to the Tooth meridian are the prairies, the south-westward extension of the Prairie Plain province.

They were to be, in general terms, the Sabine river, the 94th meridian (approximately), the Red river, the tooth meridian, the Arkansas river, and the 42nd parallel.

In the older books of travel are often found the alternative names for this region, Tooth Coast (Cate des Dents) or Kwa-Kwa Coast, and, less frequently, the Coast of the Five and Six Stripes (alluding to a kind of cotton fabric in favour with the natives).

It was observed that ten of the caudal vertebrae of the latter skeleton bore tooth marks and grooves corresponding exactly with the sharp pointed teeth in the jaw of the carnivorous dinosaur.

In this line there is a tendency 'to lose the last upper molar, but in Prolagus, which ranges in the Pliocene from Sardinia and Corsica to Spain, and forms a side-branch, the corresponding lower tooth has likewise disappeared.

There is, however, a minute upper canine developed at first, which is early shed; and in extinct forms this tooth was FIG.

The canine was like a premolar, and in contact with the first tooth of that series; and the cheek-teeth were short-crowned, with the premolar simpler than the molars, and a third lobe to the last lower tooth of the latter series.

The radula when present comprises several transverse rows of teeth, and each transverse row may have several teeth (polystichous), two teeth (distichous), or one tooth (monostichous).

On the floor of the pharynx or buccal mass is a rudimentary radula, which in many species consists of a single large tooth, bearing two small teeth or a row of teeth.

In the cheekteeth the sectorial or scissor-like cutting function is developed at the expense of the tubercular or grinding, there being only one rudimentary tooth of the latter form in the upper jaw, and none in FIG.

The mandibular symphysis extends backwards at least to the fifteenth tooth.

The mandibular symphysis does not reach beyond the eighth tooth.

C. cataphractus is the common crocodile of West Africa, easily recognised by the slender snout which resembles that of the gavial, but the mandibular symphysis does not reach beyond the eighth tooth.

In 1902 the tooth anniversary of the city's incorporation with Prussia was celebrated.

Hence, if there are 365 days in a year, the Tooth day from the beginning is the 266th, not the 265th, from the end.

Oyocos, like, 6 oi,s, tooth), and in the case cited, as the teeth are never changed, it is also monophyodont (Gr.

Many mammals have, between these two sets, a tooth at each corner of the mouth, longer and more pointed than the others, adapted for tearing or stabbing, or for fixing struggling prey.

The third upper molar (m 3) is the only tooth wanting to complete the typical heterodont mammalian dentition.

This distinction is, however, not so important as it appears at first sight, for their connexion with the bone is only of a secondary nature, and, although it happens conveniently that in the great majority of cases the division between the bones coincides with the interspace between the third and fourth tooth of the series, still, when it does not, as in the mole, too much weight must not be given to this fact, if it contravenes other reasons for determining the homologies of the teeth.

Of the five teeth between the incisors and molars the most anterior, or the one usually situated close behind the premaxillary suture, very generally assumes a lengthened and pointed form, and constitutes the " canine " of the Carnivora, the tusk of the boar, &c. It is customary, therefore, to call this tooth, whatever its size or form, the " canine."

With regard to the lower teeth the difficulties are greater, owing to the absence of any suture corresponding to that which defines the incisors above; but since the number of the teeth is the same, since the corresponding teeth are preceded by milk-teeth, and since in the large majority of cases it is the fourth tooth of the series which is modified in the same way as the canine (or fourth tooth) of the upper jaw, it is reasonable to adopt the same divisions as with the upper series, and to call the first three, which are implanted in the part of the mandible opposite to the premaxilla, the incisors, the next the canine, the next four the premolars, and the last three the molars.

Dron was one of those physically and mentally vigorous peasants who grow big beards as soon as they are of age and go on unchanged till they are sixty or seventy, without a gray hair or the loss of a tooth, as straight and strong at sixty as at thirty.