Dictionary » J » Jaw

Jaw

Jaw

1. (Science: anatomy) One of the bones, usually bearing teeth, which form the framework of the mouth. Hence, also, the bone itself with the teeth and covering.

in the plural, the mouth.

2. Anything resembling the jaw of an animal in form or action; especially, pl, the mouth or way of entrance; as, the jaws of a pass; the jaws of darkness; the jaws of death.

3. (Science: machinery) a notch or opening. A notched or forked part, adapted for holding an object in place; as, the jaw of a railway-car pedestal. See Axle guard.

One of a pair of opposing parts which are movable towards or from each other, for grasping or crushing anything between them, as, the jaws of a vise, or the jaws of a stone-crushing machine.

4. The inner end of a boom or gaff, hollowed in a half circle so as to move freely on a mast.

5.

Impudent or abusive talk. Jaw bit, a bar across the jaws of a pedestal underneath an axle box. Jaw breaker, a word difficult to pronounce. Jaw rope, a rope which holds the jaws of a gaff to the mast. Jaw tooth, a molar or grinder; a back tooth.

Origin: a modification of chaw, formed under the influence of f. Joue the cheek. See Chaw, Chew. The part of the skull of a vertebrate that frames the mouth and holds the teeth.The bones of the skull that frame the mouth and serve to open it; the bones that hold the teeth.The mandible bone of animals, that provides the muscle power for the crushing action used in teeth to break down foodstuffs.


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Supraorbital brow ridge.

... to be inheritable too. Do we have any informations on this? I used to think the brow ridge came with a large bone structure and a wide, thick jaw, but it actually doesn't. It seems to be more of a random things. If you guys have anything regarding this matter, I'd be glad to know it. http://efossils.org/sites/efossils.org/files/brow_ridge.jpg?1313615504 ...

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by Structutr
Wed Dec 18, 2013 4:11 pm
 
Forum: Human Biology
Topic: Supraorbital brow ridge.
Replies: 0
Views: 800

Small Mammal's Lower Jaw? Very unique- trying to identify

... is right, serious deformation, probably the reason it died as there is no way it could macerate its prey with the teeth laying horizontally to the jawbone. It died young whatever it was as the teeth are in good condition, I don't think it is a fox I done some quick googling and a foxes jaw bone ...

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by vk4vfx
Wed Nov 20, 2013 10:39 am
 
Forum: Zoology Discussion
Topic: Small Mammal's Lower Jaw? Very unique- trying to identify
Replies: 5
Views: 3299

A bone question from Sweden

... small island. There were no other bones around indicating the species of the animal and I have never seen anything like it. My first thought was a jaw-bone but there are not even a hint of teeth and the angles as well as the “construction” are looks strange for a jaw bone as far as I can judge. ...

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by Marterius
Fri Oct 04, 2013 11:13 pm
 
Forum: Zoology Discussion
Topic: A bone question from Sweden
Replies: 1
Views: 1225

Re: Small Mammal's Lower Jaw? Very unique- trying to identify

I will go ahead and make the assertion that there is some serious deformation of the jaw. It's been awhile but I do see what I would call carnassials which would make it a carnivore, assuming that they are carnassials. Incisor count eliminates marsupial so if I had ...

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by Grisner
Wed Jun 26, 2013 12:49 am
 
Forum: Zoology Discussion
Topic: Small Mammal's Lower Jaw? Very unique- trying to identify
Replies: 5
Views: 3299

Re: Small Mammal's Lower Jaw? Very unique- trying to identify

It's about two inches from the front teeth to the back

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by benchambers
Mon Mar 04, 2013 7:00 pm
 
Forum: Zoology Discussion
Topic: Small Mammal's Lower Jaw? Very unique- trying to identify
Replies: 5
Views: 3299
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