\tˈuːθ], \tˈuːθ], \t_ˈuː_θ]\
Definitions of TOOTH
- 2006 - WordNet 3.0
- 2011 - English Dictionary Database
- 2010 - New Age Dictionary Database
- 1913 - Webster's Revised Unabridged Dictionary
- 1919 - The Winston Simplified Dictionary
- 1920 - A practical medical dictionary.
- 1899 - The american dictionary of the english language.
- 1894 - The Clarendon dictionary
- 1919 - The Concise Standard Dictionary of the English Language
- 1920 - A dictionary of scientific terms.
- 1898 - American pocket medical dictionary
- 1916 - Appleton's medical dictionary
- 1871 - The Cabinet Dictionary of the English Language
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By Princeton University
By DataStellar Co., Ltd
By Oddity Software
By Noah Webster.
By William Dodge Lewis, Edgar Arthur Singer
One of the hard conical structures set in the alveoli of the upper and lower jaws, employed in mastication and assisting also in articulation. A tooth is a dermal structure, not bone; it is composed of dentine (substantia eburnea), encased in cement (substantia ossea) on the covered portion, and enamel (substantia adamantina), on its exposed portion. It consists of a root (radix) buried in the alveolus, a neck (collum) covered by the gum, and a crown (corona) the exposed portion. In the center is a hollow, the tooth-cavity or pulp-cavity, filled with a connective-tissue reticulum containing a jelly-like substance (pulpa dentis) and blood-vessels and nerves which enter through a canal at the apex of the root. The 20 milk-teeth or deciduous teeth (see dens deciduus) appear between the sixth or ninth and the twenty-fourth months of life. These fall out and are replaced by the 32 permanent teeth (see dens permanens) appearing from the 5th or 7th to the 16th or 23d years. There are four kinds of teeth; incisor (dens incisivus), canine (dens caninus), bicuspid or premolar (dens premolaris), and molar (dens molaris). See dens, denial, dentition, and teeth.
By Stedman, Thomas Lathrop
By Daniel Lyons
By William Hand Browne, Samuel Stehman Haldeman
By James Champlin Fernald
By Willam Alexander Newman Dorland
By Smith Ely Jelliffe
n. [Anglo-Saxon, Gothic, Greek] One of the series of small bones attached to the jaws of vertebrate animals which serve the purpose of taking and chewing food;-hence, taste ; palate;- any projection corresponding to the tooth;-a tine; a prong of a multifid instrument, as a rake, comb, &c. ;-a projecting part on the axis of a wheel fitting into or catching correspondent parts in other bodies.