28 July 2018
dentin
[den-tn, -tin]
noun, Dentistry.
1. the hard, calcareous tissue, similar to but denser than bone, that forms the major portion of a tooth, surrounds the pulp cavity, and is situated beneath the enamel and cementum.
Also, dentine [den-teen]
Origin of dentin
1830-1840 First recorded in 1830-40; dent- + -in2
Related forms
dentinal, adjective
Dictionary.com
Examples from the Web for dentin
Historical Examples
The teeth are pointed and often have the dentine remarkably folded.
The Vertebrate Skeleton
Sidney H. Reynolds
This models the enamel cap which fits over the dentine like a glove.
Degeneracy
Eugene S. Talbot
A papilla of the dermis makes its appearance, the outer layer of which gradually calcifies to form the dentine and osseous tissue.
The Works of Francis Maitland Balfour, Volume III (of 4)
Francis Maitland Balfour
Anagram
intend
tinned
Today’s quote
Coincidence doesn’t equal conspiracy.
– Stephen King, from The End of Watch
On this day
28 July 1586 – the humble and versatile potato introduced to the British Isles by Sir Thomas Harriot after it was brought to Europe from the Americas by the Spanish.
28 July 1866 – the United States recognises the metric system as a valid means of measurement.
28 July 1900 – Louis Lassing of Connecticut invents the hamburger.
28 July 1902 – birth of Albert Namatjira, Australian Aboriginal artist. Died 8 August 1959.
28 July 1914 – start of World War I when a Serbian nationalist, Gavrilo Princep, assassinated Austrian Prince Franz Ferdinand. At the time, Europe was comprised of two blocs, the Triple Entente (Britain, France and Russia) and the Triple Alliance (Germany, Austria-Hungary and Italy). War escalated as each country came to the other’s aid following military responses to the assassination.
28 July 1928 – IX Olympiad opens in Amsterdam.
28 July 1945 – a United States Air Force B-25 Liberator bomber collides with the Empire State Building in New York at 9.40am. The plane was flying from Bedford Army Air Field to Newark Airport. The pilot asked for clearance to land but was denied because of zero visibility as a result of heavy fog. Rather than turn around, the pilot continued on and became disoriented in the thick fog. The plane smashed into the building between the 78th and 80th floors, killing 14 people, including all on board the plane. One of the plane’s engines flew through the other side of the building, into the next block, falling 900 feet onto the roof of another building, causing a fire that destroyed a penthouse. The other engine and part of the landing gear plummeted down the elevator shaft.