sundial

[suhn-dahy-uhl, -dahyl]
noun
an instrument that indicates the time of day by means of the position, on a graduated plate or surface, of the shadow of the gnomon as it is cast by the sun.

Origin:
1570–80; sun + dial

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To sundial
Collins
World English Dictionary
sundial (ˈsʌnˌdaɪəl)
 
n
a device indicating the time during the hours of sunlight by means of a stationary arm (the gnomon) that casts a shadow onto a plate or surface marked in hours

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Encyclopedia Britannica
Encyclopedia

sundial

the earliest type of timekeeping device, which indicates the time of day by the position of the shadow of some object exposed to the Sun's rays. As the day progresses, the Sun moves across the sky, causing the shadow of the object to move and indicating the passage of time. .

Learn more about sundial with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Example sentences
The sundial's nocturnal counterpart, the water clock, was designed to measure temporal hours at night.
Noon on a well-made, properly paced sundial is whenever the sun is highest right there.
The southern parcel contains a playground and the northern parcel has a sundial and large open sloped lawn.
T he monument is a sundial featuring a plaque inscribed with the names of our fallen friends.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;